"Administración Continua de Dosis Bajas de Progestágenos en Implantes Subdérmicos.  Informe Preliminar”: Alvarez, F; Montes de Oca, V; Brache, V; Faúndes, A.  Published in the book Adelantos Anticonceptivos en América Latina y el Caribe.   (IPPF-WHR):150-163, 1977.

"Attainment and Maintenance of Azospermia with Combined Monthly Injections of Depot Medroxyprogesterone Acetate and Testosterone Enanthate”:  Alvarez, F; Faúndes, A; Brache, V; León, P. Contraception, June 1977, Vol.15 (6):635-648 y Year Book of Obstetrics and Gynecology 1978, Pitkin/Scott, P.422-423.

"Migración Espermática en Diferentes Etapas del Ciclo Menstrual de la Mujer”: Alvarez, F; Montes de Oca, V; Brache, V; Faúndes, A. Ciencia y Sociedad Vol.III (1):35-50, January/June 1978.

"Estudio Clínico Comparativo de Dos Diferentes Progestágenos Administrados en Implantes Subdérmicos”: Alvarez, F; Robertson, DN; Montes de Oca, V; Brache, V; Faúndes, A.  Ciencia y Sociedad, Vol.III(2):141-154, July/Diciembre 1978.

“Comparative Clinical Trial of the Progestine R-2323 and Levonorgestrel Administered by Subdermal Implants”:  Alvarez, F; Robertson, D; Sivin, I; Montes de Oca, V; Brache, V; Faúndes, A. Contraception, Vol.18 (2):151-162, August 1978.

“First Year Clinical Experience with Six Levonorgestrel Rods as Subdermal
Contraception”:  Faúndes, A; Brache, V; León, P; Robertson, D; Alvarez,.  Contraception, Vol.20 (2):167-175, 1979.

“Inhibition of Spermatogenesis with Monthly Injections of Medroxyprogesterone Acetate and Low Dose Testosterone Enanthate”:  Alvarez, F; Brache, V; León, P; Faúndes, A. International Journal of Andrology, Vol.2 (2):136-149, 1979.

“Pregnancies Associated with Sperm Concentration below 10 million/ml in Clinical Studies of a Potential Male Acetate and Testosterone Esters”:  Barfield, A; Melo, J; Coutinho, E; Da Silva, AR, Alvarez, F; Faúndes, A; Brache, V; León,  P; Frick, J; et al.  Contraception, Vol.20 (2):121-127, 1979.

“The Menstrual Cycle in Women Using an Intrauterine Device”:  Faúndes, A; Segal, S; Adejowun, C; Brache, V; León, P; Alvarez, F. Fertility and Sterility, Vol.34 (5):427-430, 1980.

“Sperm Suppression with Monthly Injections of Medroxyprogesterone Acetate Combined with Testosterone Enanthate at High Dose (500 mg)”:  Faúndes, A; Alvarez, F; Brache, V; León, P; Schmidt, F. International Journal of Andrology, Vol.4 (3):235-245, 1981.

“Sperm Migration at Different Stages of the Menstrual Cycle”:  Faúndes, A; Montes de Oca, V; Brache, V; Alvarez, F. International Journal of Gynecology and Obstetrics, Vol.19:361-366, 1981.

“Pituitary Ovarian Function in Tubal Ligation”:  Alvarez, F; Segal, S; Brache, V; Adejowun, C; León,  P; Faúndes, A.  Fertility and Sterility, Vol.36(5):606-609, 1981.

“A Multicenter Study of Levonorgestrel-Estradiol Contraceptive Vaginal Rings I - Use-Effectiveness”:  Sivin, I; Mishell, DR; Victor A; Díaz, S; Alvarez, F; Nielsen, NC; Akinla, O; Pyorola, T; Coutinho, E; Faúndes, A; Roy, S; Brenner, PF; Pavez, M; Brache, V; Giwa-Osagie, OF; Fasan, MO; Díaz, J; Jackanicz, TM; Stern, J; Nash, HA.  Contraception, Vol.24 (4):341-358, 1981.

“A Multicenter Study of Levonorgestrel-Estradiol Contraceptive Vaginal Rings II - Subjective and Objective Measures of Effects.  An International Comparative Trial”:  Sivin, I; Mishel, DR; Victor, A; Díaz, S; Alvarez, F; Nielsen, NC; Akinla, O; Pyorala, T; Coutinho, E; Faúndes, A; Roy, S; Brenner, PF; Pavez, M; Brache, V; Giwa-Osagie, OF; Fasan, MO; Zausner-Guelman, B; Carze, E; Gama da Silva, JC; Díaz, J; Jackanicz, TM; Stern, J; Nash, HA.  Contraception, Vol.24 (4):359-376, 1981.

“A Multicenter Study of Levonorgestrel-Estradiol Contraceptive Vaginal Rings II I- Menstrual Patterns.  An International Comparative Trial”.  (Ver autores nombrados anteriormente) - Contraception, Vol. 24(4):377-392, 1981.

“Lipoprotein Patterns in Women in Santo Domingo Using a Levonorgestrel-Estradiol Contraceptive Ring”:  Robertson, DN; Alvarez, F; Sivin, I; Brache, V; Stern, J; León, P; Faúndes, A. Contraception, Vol.24 (4):469-480, 1981.

“Valoración de un Perfil de Pruebas de Madurez Fetal en Gestaciones a Término”: Rosario, E; Alvarez, F; Alcántara Morales, M; D'Oleo, H; Brache, V.  Acta Médica Dominicana, Vol.3 (3):115-122, 1981.

“The Effect of Levonorgestrel and Estrone Rods on Male Reproductive Function”:  Brache, V; Alvarez, F; León,  P; Schmidt, F; Faúndes, A.  Contraception, Vol.25(6):591-603, 1982.

“Levonorgestrel Plasma Levels During Continuous Administration with Different Models of Subdermal Implants”: Alvarez, F; Brache, V; Faúndes, A; Johansson, ED; Odling, V; Nash, H. Contraception, Vol.27 (2):123-130, 1983.

“Contraception Hormonale par des Implants Sous-Cutanés”: Faúndes, A; Croxatto, H; Alvarez, F; Brache, V; Díaz, S; Segal, S.  Contraception-Fertilité-Sexualité, Vol.11(6):185-820, 1983.

“Evaluation Comparative de Cinq Combinaisons Diffférentes d"Acetate de Médroxyprogestérone et d'énanthate de Testosterone Utilisées por la Suppression de la Spermatogénese”: Alvarez, F; Brache, V; Faúndes, A; León, P.  Contraception-Fertilité-Sexualité, Vol.11 (2):177-184, 1983.

“Intrauterine Contraception with Copper and with Levonorgestrel:  A Randomized Study of the Tcu 380Ag and Levonorgestrel 20 mcg/Day Devices”:  Sivin, I; Díaz, S; Alvarez, F; El Mahgoub, S; Coutinho, E; Brache, V; Faúndes, A; Pavez, M; Díaz, M; Mattos, C.E.R.; Stern, J.-  Contraception, Vol.30(5):443-456, 1984.

”Anovulation, Inadequate Luteal Phase and Poor Sperm Penetration in Cervical Mucus During Prolonged Use of NORPLANT® Implants”:  Brache, V; Faúndes, A; Alvarez, A; Johansson, E.-  Contraception, Vol.31(3):261-273, 1985.

“Contraception with Long-Acting Subdermal Implants.  A Five-Year Clinical Trial with Silastic Covered Rods Implants Containing Levonorgestrel”:  Robertson, D.N; Díaz, S; Alvarez, F; Holma, P; Mishell, D.R.; Coutinho, E; Brache, V; Croxatto, H.B.; Faúndes, A; Pavez, M; Lacarra, M; Roy, S; Da Silva, A.R.; Sivin, I; Stern, J.-  Contraception, Vol.31(4):351-359, 1985.

“Absence of Chorionic Gonadotrophin in Sera of Women who Use Intrauterine Devices”:  Segal, S; Alvarez, F; Adejuwon, C; Brache, V; León,  P; Faúndes, A.-  Fertility and Sterility, Vol.44(2):214-218, 1985.

“Anticoncepción Hormonal de Administración por Vía Vaginal”: Alvarez, F; Brache, V; Faúndes, A; Hardy, E.  Revista Iberoamericana de Fertilidad, Year II(7):21-26, May-June, 1985.

“Abnormal Endocrine Profile Among Women with Confirmed for Presumed Ovulation During Long-Term NORPLANT® Use”: Alvarez, F; Brache, V: Tejada, AS; Faúndes, A.- Contraception, Vol.33(2):111-119, 1986.

“Recovery of Fertility After Use of the Levonorgestrel  20 mcg/Day or Copper T 380Ag Intrauterine Device”: Belhadj, H; Sivin, I; Díaz, S; Pavez, M; Tejada, AS; Brache, V; Alvarez, F; Shoupe, D; Breaux, H; Mishell, D.R.; McCarthy, T; Yo, V.-  Contraception, Vol.34(3):261-267, 1986.

“Subjective Perception of Bleeding and Serum Ferritin Concentration in Long Term Users of NORPLANT®”: Faúndes, A; Brache, V: Alvarez, F; Tejada, AS.  Contraception, Vol.35 (2):189-196, February 1987.

“Two Years of Intrauterine Contraception with Levonorgestrel and with Copper: A Randomized Comparison of the Tcu 380Ag and Levonorgestrel 20 mcg/Day Devices”:  Sivin, I; Stern, J; Díaz, M; Faúndes, A; Díaz, S; El Mahgoub, S; Pavez, M; Coutinho, E; Mishell, D; Mattos, CER; McCarthy, T; Shoupe, D; Alvarez, F; Brache, V; Jiménez, E.-  Contraception, Vol.35(3):245-255, 1987.

“Clinical Performance of NORPLANT® Implants Over Time: A Comparison of Two Cohorts”:  Alvarez, F; Faúndes, A; Brache, V. Studies in Family Planning, Vol.19 (2):118-121, 1988.

“New Insights on the Mode of Action of Intrauterine Contraceptive Devices in Women”:  Alvarez, F; Brache, V; Fernandez, E; et al.  Fertility and Sterility, Vol.49 (5):768-773, May 1988.

“The Role of the Levonorgestrel IUD in the Prevention and Treatment of the Iron Deficiency Anemic During Fertility Regulation”:  Faúndes, A; Alvarez, F; Brache, V; Tejada, AS.- International Journal of Gynecology and Obstetrics, Vol.26(3):429-433, June 1988.

“Prospective Study of the Pituitary-Ovarian Function after Sterilization by Pomeroy or Uchida Techniques”:  Alvarez, F; Faúndes, A; Brache, V; Tejada, AS; Segal, S.- Fertility and Sterility, Vol.51(4):604-608, April 1989.

“Nuevos Conocimientos en el Mecanismo de Acción de los Dispositivos Intrauterinos en la Mujer”: Alvarez, F; Brache, V; Fernandez, E; et al.  Acta Médica Dominicana, Vol.11 (3):111-117, May-June, 1989.

“Ovarian Endocrine Function Through Five Years Continuous Treatment with NORPLANT® Subdermal Implants”:  Brache, V; Alvarez, F; Faúndes, A; Tejada, AS; Cochon, L.-  Contraception, Vol.41(2):160-177, 1990.  Year Book 1991, Pag.455.

“A Randomized Trial of the Gyne T*380 and the Gyne T*380 Slimline Intrauterine Copper Devices”:  Sivin, I; Shaaban, M; Odling, V; Olsson, E.S.; Díaz, S; Pavez, M; Alvarez, F; Brache, V; Díaz, J. et al.-  Contraception, Vol.42(4):379-389, October 1989.

“Advances in the Development of Antifertility Vaccine”:  Thau, R; Croxatto, H; Luukkainen, T; Alvarez, F; Brache,V; et al.-  Reproductive Immunology, Pg.237-244, 1989.

“Implantes Anticonceptivos NORPLANT®”  Opinión de Mujeres Dominicanas que usaron el Método”: Hardy, E; Báez, C; Faúndes, A; Alvarez, F; Brache, V.-  Acta Médica Dominicana Vol.12 (1):1-6, January-February, 1990.

“Assessing the Acceptability of NORPLANT® Implants in Four Countries:  Findings from Focus Group Research”:  Zimmerman, M; Haffey, J; Crane, E; Szumowski, D; Alvarez, F;  Brache, V; Bhiromrut, P, et al.-  Studies in Family Planning, Vol.21(2):92-103, March-April, 1990.

“Estudio Prospectivo de la Función Pituitario-Ovárica tras Esterilización Tubárica Mediante Técnicas de Pomeroy o Uchida”: Alvarez, F; Faúndes, A; Brache, V; Tejada, AS; Segal S.-  GINEDIPS, XXI (5):242-250, May 1990.

“Long Term Contraception with the Levonorgestrel 20 mcg/Day (LNg 20 and the Copper T380 Ag Intrauterine Devices:  A Five-Year Randomized Study”:  Sivin, I; El Mahgoub, S; McCarthy, T; Mishell, D.R. Jr; Shoupe, D; Alvarez, F; Brache, V; Jiménez, E; et al.- Contraception, Vol.42 (4):361-378, October 1990.

“Ovulatory Dysfunction During Continuous Administration of Low Dose Levonorgestrel by Subdermal Implants”: Faúndes, A; Brache, V; Tejada, AS; Cochon, L; Alvarez, F.-  Fertility and Sterility, Vol.56(1):27-31, July 1991.

“NORPLANT® Implants: The Mechanism of Contraceptive Action”:  Segal, S; Alvarez, F; Brache, V; Faúndes, A; Vilja, P; Tuohima, P.-  Fertility and Sterility, Vol.56(2):273-277, August 1991.

“Hormonal Changes Associated with Bleeding during Low Dose Progestagen Contraception Delivered by NORPLANT Subdermal Implants”:  Faúndes, A; Alvarez, F; Brache, V; Jiménez, E; Tejada, AS-  Advances in Contraception, Vol.7:1-10, 1991.

“Prolonged Intrauterine Contraception: A Seven-Year Randomized Study of the Levonorgestrel 20 mcg/Day (Lng 20) and the Copper T380 Ag IUDs”:  Sivin, I; Stern, J; Coutinho, E; Matos CER; El Mahgoub, S; Díaz, S; Pavez, M; Alvarez, F; Brache,V; Thevenin, F; Díaz, J; Faúndes, A; et al.-  Contraception, Vol.44(5):473-480, Noviembre 1991.

“Two-Year Comparative Trial of the Gyne T*380 Slimline and the Gyne T*380 Intrauterine Copper Devices”:  Sivin, I; Díaz, S; Pavez, M; Alvarez, F; Brache, V; Díaz, J; Odling, V; Olsson, S; Stern, J.  Contraception, Vol.44(5):481-487, Noviembre 1991.

“Rates of Outcome of Planned Pregnancy after Use of NORPLANT® Capsules, NORPLANT® II Rods, or Levonorgestrel-releasing or Copper T 380 Ag Intrauterine Contraceptive Devices”:  Sivin, I; Stern, J; Díaz, S; Pavez, M; Alvarez, F; Brache, V; Mishell, D.R.; et al.-  American Journal of Obstetrics and Gynecology, Vol.166(4):1208-1213, April 1992.

“Evaluation of Four Different Contraceptive Vaginal Rings: Steroid Serum Levels, Luteal Activity, Bleeding Control and Lipid Profiles”: Alvarez, F; Brache, V; Jackanicz, T; Faundes A.-  Contraception, Vol.46(4):387-398, 1992.

“Free Levonorgestrel Index and its Relationship with Luteal Activity During Long Term Use of NORPLANT® Implants”:  Brache, V; Alvarez, F; Faúndes, A; Tejada, AS; Cochon, L.  Advances in Contraception, 8:319-326, 1992.

“Four-Year Experience in a Randomized Study of the Gyne T 380 Slimline and the Standard Gyne T 380 Intrauterine Copper Devices”:  Sivin, I; Díaz, J; Alvarez, F; Brache, V; Díaz, S; Pavez, M; Stern, J.-  Contraception 47:37-42, 1993.

“Comparative Study on the Efficacy and Acceptability of Two Contraceptive Pills Administered by the Vaginal Route: An International Multicenter Clinical Trial”:  Coutinho, E; De Souza, J; Da Silva, AR; Mateo de Acosta, O; Alvarez, F; Brache, V; et al.  Clinical Pharmacology and Therapeutics, 53(1):65-75, 1993.

“Recent Experience with and Future Directions of Contraceptive Implants and Injectables Contraceptives”: Alvarez, F; Brache, V; Faúndes, A.-  Current Opinion in Obstetrics and Gynecology, 5:805-814, 1993.

“Differences in Serum Potassium in Normal Men in Different Geographic Locations”: Reidenberg, MM; Zhi-Ping, G; Lorenzo, B; Coutinho, E; Athayde, C; Frick, J; Alvarez, F; Brache, V; and Emuveyan, E.  Clinical Chemistry, 39(1):72-75, 1993.

“Multicenter Clinical Trial on the Efficacy and Acceptability of a Single Contraceptive Implant of Nomegestrol Acetate: Uniplant”: Coutinho, E; De Souza, JC; Athayde, C; Barbosa, IC; Alvarez, F; Brache, V; Zhi-Ping, G; Emuveyan, E; Adekunle, AO; Devoto, L; Shaaban, MM; Salem, HT; Affandi, B; Mateo de Acosta, O; Mati, J; Ladipo, OA.  Contraception, Vol.53(2):121-125, February 1996

“Hormonal Treatment for Bleeding Irregularities in NORPLANT® Implant Users”: Alvarez, F; Brache, V; Thevenin, F; Cochon, L; Faúndes, A.  American Journal of Obstetrics and Gynecology, Vol.174(4):919-922, 1996.

“Functional Life-span of the Dominant Follicle in Pharmacological Induced Anovulatory Cycles”: Faúndes, A; Brache, V; Alvarez, F. Human Reproduction, Vol.11, No.1:114-116, 1996.

Effect of Preovulatory Insertion of NORPLANT® Implants over Luteinizing Hormone Secretion and Follicular Development”:  Brache, V; Alvarez, F; Faúndes, A; Cochon, L; Thevenin, F.- Fertility and Sterility, Vol.65(5):1110-1114, June 1996.

Ultrasonographic and Endocrine Evaluation of Ovarian Function Among Norplantâ Implants Users with Regular Menses”. Alvarez, F; Brache, V; Faundes, A; Tejada, AS; Thevenin, F.  Contraception 54:275-279, 1996.

“Results of a User Satisfaction Study Carried Out in Women Using Uniplant Contraceptive Implant”: Coutinho, EM; Athayde, C; Barbosa, I; Alvarez, F; Brache,V; Zhi-Ping, G; Emuveyan E; Adekunle, AO; Devoto, L; Mateo de Acosta, O; Mati, J; Ladipo, OA.-  Contraception Vol.56:313-317, 1996.

“A Comparison of “U” and Standard Techniques for NORPLANT® Removal”:  Rosenberg, MJ; Alvarez, F; Barone, MA; Waugh, MS; Brache, V; Pollack, AE.-  Obstetrics and Gynecology Vol.89(2):168-173,  1997.

“Estradiol Delivery by Vaginal Rings: Potential Hormone Replacement Therapy”: Nash, HA; Brache, V; Alvarez, F; Jackanicz, TM; Harmon, T.  Maturitas 26:27-33, 1997.

“Levonorgestrel Concentrations During Use of Levonorgestrel Rod (LNG ROD) Implants”.  Sivin, I; Laahteenmaki, P; Ranta, S: Darney, P; Klaisle, C; Wan, L; Mishell, DR; Lacarra, M; Viegas, OAC; Bilhareus, P; Koetsawang, S; Piya-Anant, M; Diaz, S; Pavez, M; Alvarez, F; Brache, V; LaGuardia, K; Nash, H and Stern, J.  Contraception 55:81-85, 1997.

“Contraceptives for Lactating Women: A Comparative Trial of  aProgesterone-Releasing Vaginal Ring and the Copper T 380A IUD”. Sivin, I; Diaz, S; Croxatto, HB; Miranda, P; Shaaban, M; Sayed, EH; Xiao, B; Wu, S; Du, M; Alvarez, F; Brache, V; Basnayake, S; McCarthy, T; Lacarra, M; Mishell, DR;  Koetsawang, S; Stern  J. and Jackanicz, T.  Contraception 55:225-232, 1997.

“Onset of Norplantâ Contraceptive Effect: Cervical Mucus Changes”.  Dunson, TR; Blumenthal, PD; Alvarez, F; Brache, V; Cochon, L; Dalberth, B; Katz, D; Remsburg, R.  Abstracts and Programme presented at the XV FIGO World Congress of Gynecology and Obstetrics, in Copenhagen, Denmark; and published in Acta Obstetricia and Gynecologica Scandinavica, Vol.76, Suppl. 167, August 1997.

“First Week Drug Concentrations in Women with Levonorgestrel Rod or Norplantâ Capsule Implants”.  Sivin, I; Lähteenmäki, P; Mishell, DR; Alvarez, F; Diaz, S; Ranta, S; Grozinger, C; Lacarra, M; Brache, V; et al.  Contraception, Vol.56:317-321, 1997.

“Colposcopic Evaluation on a Formulation of iota-Carrageenan”. Elias, CJ; Coggins, C; Alvarez, F; Brache, V; Fraser, IS; Lacarra, M; Lahteenmaki, P; Massai, R; Mishell DR; Phillips, DM; Salvatierra, AM.  Contraception, Vol.56:387-389, 1997.

“Endometrial Thickness and Oestradiol Concentration in Women with Bleeding Complaints during Use of Norplantâ Implants”.  Faúndes, A; Alvarez, F;  Brache, V; Cochon, L. Human Reproduction, Vol.13:1, 1998.

“Timing of onset of contraceptive effectiveness in Norplantâ implant users. Part I. Changes in cervical mucus”.  Dunson, TR; Blumenthal PD; Alvarez, F; Brache, V; Cochon, L; Dalberth, B; Glover, L; Remsburg, R; Vu, K; Katz, D. Fertility and Sterility, Vol. 69(2):258-266, 1998. 

“Clinical Studies of NESTORONEâ Progestin/Ethynil Estradiol Contraceptive Rings”.  Jackanicz, T; Mishell, Jr. D; Lacarra, M.; Alvarez-Sánchez, Brache, V; Elomaa, K; Massai, R.  The European Journal of Contraception & Reproductive Health Care, Vol.3, Suppl. 1:33, 1998  

“Norplantâ Consensus Statement and Background Review”.  Fraser, IS; Tiitinen, A; Affandi, B; Brache, V; Croxatto, BH; Diaz, S; Ginsburg, J; Gu, S; Holma, P; Johansson, E; Meirik, O; Mishell, DR; Nash, HA; et al.  Contraception, Vol.57:1-9, 1998.

“Contraception with Two Levonorgestrel Rod Implants:  A 5-Year Study in the United States and República Dominicana”.  Sivin, I; Alvarez, F; Mishell, DR; Darney, P; Wan, L; Brache, V; Lacarra, M; Klaisle, C; Stern, J.  Contraception, Vol.58:275-282, 1998.

“A Multicenter comparative study on emergency contraceptive pill: oral versus vaginal administration”.  Garza-Flores, J; Vazquez, L; Brache, V; Alvarez, F; Adekunle, AO; Mbizvo MT; Coutinho EM.  Libro de abstractos de la Academia de Investigación en Biología de la Reproducción, A.C., XXIII Reunión Anual Mayo 1998. Pags. 267-276.  

”Sex hormone binding globulin and free Levonorgestrel index in the first week after insertion of Norplant® implants”. Alvarez, F; Brache, V; Tejada, AS; Cochon, L; and Faundes, A. Contraception, 1999; 58:211-214.

“Correlation of endocrine profiles with bleeding patterns during use of           Nestorone contraceptive implants”.  Faundes, A; Alvarez, F; Brache, V;  Cochon, L; Tejada, AS; Moo-Young, F.  Human Reproduction 1999; Vol.14 (12):3013-17.

“A Multicenter Comparative Study on Emergency Contraceptive Pill: Oral versus vaginal administration”.  Garza-Flores, J; Vasquez, L; Brache, V; Alvarez, F; Adekunle, OA; Otubu, JM.  Gynecological Endocrinology, 1999; 13(Suppl. 3):74.  Book of Abstracts presented at the 10th World Congress on Human Reproduction, Salvador, Bahia, Brazil, May 4-8, 1999.

“Timing of Onset of Contraceptive Effectiveness in Norplantâ Implant Users. II. Effect of the Ovarian Function in the First Cycle of Use”.  Brache, V; Blumenthal, PD; Alvarez, F; Dunson, TR; Cochon, L; Faundes, A.  Contraception, 1999; 59:245-251.

“Variations in vaginal epithelial surface appearance determined by colposcopic inspection in healthy, sexually active women”.  Fraser, IS; Lahteenmaki, P; Mishell, DR Jr; Alvarez, F; Brache, V; Weisberg, E; Hickey, M; Vallentine, P; Nash, H.A.  Human Reproduction, 1999; 14(8):1974-1978.

”Efficacy, bleeding patterns, and side effects of a 1-year contraceptive vaginal ring”. Weisberg, E; Fraser, IS; Lacarra, M; Mishell, DR Jr; Alvarez, F; Brache,  V; Nash, HA.   Contraception 1999; 59(5):311-318.

“Prevalence of enlarged ovarian follicles among women using Norplantâ implants”.  Alvarez-Sanchez, F; Brache, V; Montes de Oca, V; Cochon, L; Faundes, A.  American Journal of Obstetrics and Gynecology, 2000; 182(3):535-539.

”Prolonged Effectiveness of Norplantâ Capsule Implants: A 7-Year          Study”.   Sivin, I; Mishell, DR; Diaz, S; Biswas, A; Alvarez, F; Darney, P; Holma, P; Wan, L; Brache, V.  Contraception 2000, Vol.61 (3):187-194.

”Ovarian Function During Use of Nestoroneâ Subdermal Implants”.  Brache, V; Massai, R; Mishell, DR, Moo-Young, A; Alvarez, F; Salvatierra, AM; Cochon, L; Croxatto, H, Robbins, A, Faundes.  Contraception 2000, Vol.61 (3):199-204.

”Vaginal Epithelial Surface Appearances in Women Using Vaginal Rings for Contraception”.  Fraser, IS; Lacarra, M; Mishell, DR Jr; Alvarez, F; Brache, V; Lahteenmaki, P.  Contraception 2000, Vol.61 (3):131-138.

”Progestin-only contraceptive rings”. Brache, V; Alvarez-Sanchez, F; Faundes, A; Jackanicz, T; Mishell, DR Jr; Lahteenmaki, P.  Steroids 65 2000, 687-691.

”Preliminary safety and acceptability of a carrageenan gel for possible use as a vaginal microbicide”.  Coggins, C; Blanchard, K; Alvarez, F; Brache, V; Weisberg, E; Kilmarx, PH; Lacarra, M; Massai, R; Mishell, DN; Salvatierra, A; Witwatwongwana, P; Elias, C; Ellerton, C.  Sex Transm Inf 2000, Vol.76:480-3.

Delayed first injection of a once-a-month injectable contraceptive containing 25 mg of medroxyprogesterona acetate and 5 mg of E2-cypionate: effects on ovarian function”.  Petta, CA; Hays, M; Brache, V; Massai, R; Hua, Y; Alvarez-Sanchez, F; Croxatto, H; d"Arcangues, C; Cook, LA; Bahamondes, L.  Fertility and Sterility 2001,75(4):744-748.

Mechanism of action of levonorgestrel contraceptive implants”.  Brache, V; Alvarez, F; Faundes, A.  Gynecol Endocrinol 2001; 15(Suppl 2):14-20.

“Ovarian function during use of vaginal rings delivering three different doses of Nestorone®”. Brache, V; Mishell, DR; Lahteenmaki, P; Alvarez, F; Elomaa, K; Jackanicz, T; Faundes, A.  Contraception 2001; 63(5):257-61.

”Delayed first injection of a once-a-month injectable contraceptive containing 25 mg of medroxyprogesterona acetate and 5 mg of E2-cypionate: effects on cervical mucus”.  Petta, CA; Hays, M; Brache, V; Massai, R; Hua, Y; Alvarez-Sanchez, F; Salvatierra, A; d'Arcangues, C; Cook, LA; Bahamondes, L.  Contraception 2001,64(6):363-368.

”Levonorgestrel concentrations during 7 years of continuous use of Jadelle contraceptive implants”,  Sivin, I; Wan, L; Ranta, S; Alvarez, F; Brache, V; Mishell, DR Jr; Darney, P; Biswas, A; Diaz, S; Kiriwat, O; Anant, MP; Klaisle, C; Pavez, M; Schechter, J.  Contraception 2001, 64(1):43-9.

“Non-menstrual adverse events during use of implantable contraceptive for women: Data from clinical trials”.  Brache, V; Faundes A.; Alvarez, F.; Cochon L.  Contraception 2002,  Vol.65 (1):63-74.

“Effects of the Yuzpe regimen given during the follicular phase, upon ovarian function”.  Croxatto, HB; Fuentealba, B.; Brache, V; Salvatierra, A.M.; Alvarez, F; Massai R; Cochon L; Faundes A. Contraception 2002, Vol.65(2): 121-128.

“Pharmacokinetic study of different dosing regimens of levonorgestrel for emergency contraception in healthy women”.  Johansson E; Brache V; Alvarez F; Faundes A; Cochon L; Ranta S; Lovern M and Kumar N.  Human Reproduction 2002; 17(6):1472-1476.

“Risk-benefit effects of implantable contraceptives in women. Brache V, Faundes A., Alvarez F. Expert Opinion on Drug Safety 2003; 2 (3): 321-332.

Local side effects observed among long term users of Norplant contraceptive implants. Alvarez F, Brache V, Faundes A, Jorge A, Sousa MH. Contraception 2003; 68:111-115.

Emergency contraception-clinical and ethical aspects. Faundes A, Brache V, Alvarez F. Int J Gynaecol Obstet. (2003); 82: 297-305.

A clinical trial of 7 alpha-methyl-19-nortestosterone implants for possible use as a long-acting contraceptive for men. Von Eckardstein S, Noe G, Brache V, Nieschlag E, Croxatto H, Alvarez F, Moo-Young A, Sivin I, Kumar N, Small M, Sundaram K. J Clin Endocrinol Metab 2003; 88: 5232-9.

Two year performance of a Nestorone releasing contraceptive implant: a three center study of 300 women. Sivin I, Croxatto H, Bahamondes L, Brache V, Alvarez F, Massai R; Schechter J; Ranta S; Kumar N, Wu E; Tejada AS, Reyes V, Travers E, Allen A, Moo-Young A. Contraception (2004); 69: 137-144.

Pros and Cons of Vaginal Rings for Contraceptive Hormone Delivery. Faundes a, Brache V, Alvarez F. Am J Drug Deliv (2004): 2: 1- 10.

Effectiveness and acceptability of vitamin E and low-dose aspirin, alone or in combination, on Norplant-induced prolonged bleeding. d"Arcangues C, Piaggio G, Brache V, Aissa RB, Hazaelden C, Massai R, Pinol A, Subakir SB, Su-Juan G; on behalf of the Study Group on Progestogen-induced Vaginal Bleeding Disturbances. Contraception (2004); 70: 451-62.

Pituitary-ovarian function following the standard levonorgestrel emergency contraceptive dose or a single 0.75 mg dose given on the days preceding ovulation. Croxatto HB, Brache V, Pavez M, Cochon L, Forcelledo ML, Alvarez F, Massai R, Faundes A, Salvatierra AM.  Contraception (2004); 70: 442-50.

Contraceptive vaginal rings releasing Nestorone(R) and ethinylestradiol: a 1-year dose-finding trial. Sivin I, Mishell DR Jr, Alvarez F, Brache V, Elomaa K, Lahteenmaki P, Massai R, Miranda P, Croxatto H, Dean C, Small M, Nash H, Jackanicz TM.

Contraception (2005);71:122-9.

Serum Nestorone and ethinyl estradiol levels, and ovulation inhibition in women using three diferent dosage combinations of a Nestorone progestogen-ethinyl estradiol contraceptive vaginal ring on a bleeding-signaled regimen. Fraser IS, Weisberg E, Brache V, Alvarez F, Massai R, Mishell DR, Apter D, Gale J, Tsong YY, Sivin I. Contraception (2005); 72: 40-5.

Clinical performance and menstrual bleeding patterns with three dosage combination of a Nestorone progestogen/ethinyl estradiol contraceptive vaginal ring used on a bleeding-signaled regimen.  Weisberg E, Brache V, Alvarez F, Massai R, Mishell DR, Apter D, Gale J, Sivin I, Tsong YY, Fraser IS. Contraception (2005); 72: 46-52.

Feasibility study of Nestorone-ethinylestradiol vaginal contraceptive ring for emergency contraception. Croxatto HB, Brache V, Massai R, Alvarez F, Forcelledo ML, Pavez M, Cochon L, Salvatierra AM, Faundes A. Contraception (2006); 73: 46-52

Evaluating the clinical safety of three vaginal applicators: a pilot study conducted in theDominican Republic. Brache V, Cohen JA, Cochon L, Alvarez F. Contraception (2006); 73: 72-77.

Fourteen-day safety and acceptability study of 6% cellulose sulfate gel: a randomized double-blind Phase I safety study. Schwartz JL, Mauck C, Lai JJ, Creinin MD, Brache V, Ballagh SA, Weiner DH, Hillier SL, Fichorova RN, Callahan M.
Contraception. (2006); 74:133-40

Transition from Norplant to Jadelle in a clinic with extensive experience providing contraceptive implants. Brache V, Faundes A, Alvarez F, Garcia AG.
Contraception (2006); 73: 364-7.

Does meloxicam increase the incidence of anovulation induced by single administration of levonorgestrel in emergency contraception? A pilot study. Massai MR, Forcelledo ML, Brache V, Tejada AS, Salvatierra AM, Reyes MV, Alvarez F, Faundes A, Croxatto HB. Hum Reprod (2007); 22: 434-9.

Emergency contraception under attack in Latin America: response of the medical establishment and civil society. Faundes A, Távara L, Brache V, Alvarez F. Reproductive Health Matters (2007); 15: 130-8.

Pharmacokinetic study to compare the absorption and tolerability of two doses of levonorgestrel following single vaginal administration of levonorgestrel in Carraguard gel: a new formulation for “dual protection” contraception. Sitruk-Ware R, Brache V, Maguire R, Croxatto H, Kumar N, Kumar S, Montero JC, Salvatierra AM, Phillips D. Faundes A. Contraception (2007); 75: 454-60.

Effect of a single vaginal administration of levonorgestrel in Carraguard gel on the ovulatory process: a potential candidate for “dual protection” emergency contraception. Brache V, Croxatto H, Sitruk-Ware R, Maguire R, Montero JC, Kumar N, Salvatierra AM, Tejada AS, Cochon L, Forcelledo ML, Lahteenmaki P, Alvarez F, Faundes A. Contraception (2007); 76: 111-116.