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Contraception|February 1, 1983
Levonorgestrel plasma levels during continuous administration with different models of subdermal implantsF Alvarez, V Brache, A Faundes, et al.
Contraception|August 24, 1999
Timing of onset of contraceptive effectiveness in Norplant implant users. II. Effect on the ovarian function in the first cycle of useV Brache, P D Blumenthal, F Alvarez, et al.
Fertility and Sterility|August 1, 1991
Norplant implants: the mechanism of contraceptive actionS J Segal, F Alvarez-Sanchez, V Brache, et al.
Maturitas|January 1, 1997
Estradiol delivery by vaginal rings: potential for hormone replacement therapyH A Nash, V Brache, F Alvarez-Sanchez, et al.
Steroids|December 8, 2000
Progestin-only contraceptive ringsV Brache, F Alvarez-Sanchez, A Faundes, et al.
Contraception|January 1, 1993
Four-year experience in a randomized study of the Gyne T 380 Slimline and the Standard Gyne T 380 intrauterine copper devicesI Sivin, J Diaz, F Alvarez, et al.
Fertility and Sterility|November 1, 1980
The menstrual cycle in women using an intrauterine deviceA Faundes, S J Segal, C A Adejuwon, et al.
Contraception|October 1, 1981
Lipoprotein patterns in women in Santo Domingo using a levonorgestrel/estradiol contraceptive ringD N Robertson, F Alvarez, I Sivin, et al.
Contraception|July 13, 2001
Ovarian function during use of vaginal rings delivering three different doses of NestoroneV Brache, D R Mishell, P Lahteenmaki, et al.
Fertility and Sterility|November 1, 1981
Pituitary-ovarian function after tubal ligationF Alvarez-Sanchez, S J Segal, V Brache, et al.
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