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Margarita Pavez

Prolonged intrauterine contraception: A seven-year randomized study of the levonorgestrel 20 mcg/day (LNg 20) and the Copper T380 Ag IUDS
1991 · Irving Sivin, Janet Stern, et al. · Contraception · 232
Pituitary–ovarian function following the standard levonorgestrel emergency contraceptive dose or a single 0.75-mg dose given on the days preceding ovulation
2004 · H.B. Croxatto, V. Brache, et al. · Contraception · 194
Long-term contraception with the levonorgestrel 20 mcg/day (LNg 20) and the Copper T 380Ag intrauterine devices: A five-year randomized study
1990 · Irving Sivin, Sayed El Mahgoub, et al. · Contraception · 179
A five-year clinical trial of levonorgestrel silastic implants (Norplant™)
1982 · S. Diaz, M. Pavez, et al. · Contraception · 112
The performance of levonorgestrel rod and Norplant contraceptive implants: a 5 year randomized study
1998 · I. Sivin, I. Campodonico, et al. · Human Reproduction · 92
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Rates and outcomes of planned pregnancy after use of Norplant capsules, Norplant II rods, or levonorgestrel-releasing or copper TCu 380Ag intrauterine contraceptive devices
1992 · Irving Sivin, Janet Stern, et al. · American Journal of Obstetrics and Gynecology · 91
Clinical trial with 3-keto-desogestrel subdermal implants
1991 · S. Díaz, M. Pavez, et al. · Contraception · 89
Clinical assessment of treatments for prolonged bleeding in users of norplantR implants
1990 · Soledad Dĺaz, Horacio B. Croxatto, et al. · Contraception · 80
Levonorgestrel concentrations during 7 years of continuous use of Jadelle contraceptive implants☆
2001 · Irving Sivin, Livia Wan, et al. · Contraception · 77
Intrauterine contraception with copper and with levonorgestrel: A randomized study of the TCu 380Ag and levonorgestrel 20 mcg/day devices
1984 · Irving Sivin, Francisco Alvarez, et al. · Contraception · 71
Recovery of fertility after use of the Levonorgestrel 20 mcg/d or copper T 380 Ag intrauterine device
1986 · Hedia Belhadj, Irving Sivin, et al. · Contraception · 69
Two years of intrauterine contraception with levonorgestrel and with copper: A randomized comparison of the TCu 380Ag and levonorgestrel 20 mcg/day device
1987 · Irving Sivin, Janet Stern, et al. · Contraception · 67
Levonorgestrel concentrations during use of levonorgestrel rod (LNG ROD) implants
1997 · Irving Sivin, Pekka Lähteenmäki, et al. · Contraception · 64
Plasma progesterone levels during long-term treatment with levonorgestrel silastic implants
1982 · Horacio B. Croxatto, Soledad Diaz, et al. · European Journal of Endocrinology · 63
A multicenter study of levonorgestrel—Estradiol contraceptive vaginal rings I — Use effectiveness
1981 · Irving Sivin, Daniel R. Mishell, et al. · Contraception · 62
Clinical chemistry in women treated with levonorgestrel implants (NORPLANT™∗∗NORPLANT™is the Population Council's trademark for subdermal implants containing levonorgestrel.) or a TCu 200 IUD
1983 · H.B. Croxatto, S. Diaz, et al. · Contraception · 60
Clinical performance of a new two-rod levonorgestrel contraceptive implant: A three-year randomized study with Norplant® implants as controls
1997 · Irving Sivin, Osborn Viegas, et al. · Contraception · 56
Prolonged effectiveness of Norplant® capsule implants: a 7-year study
2000 · Irving Sivin, Daniel R Mishell, et al. · Contraception · 49
Long-term follow-up of women treated with NORPLANTR implants
1987 · S. Díaz, M. Pavez, et al. · Contraception · 44
Clinical trial with Nestorone™ subdermal contraceptive implants
1995 · S. Díaz, V. Schiappacasse, et al. · Contraception · 41
Effect of intermittent treatment with mifepristone on bleeding patterns in Norplant® implant users
2004 · María Rebeca Massai, Margarita Pavez, et al. · Contraception · 39
A multicenter study of levonorgestrel—Estradiol contraceptive vaginal rings II — Subjective and objective measures of effects
1981 · Irving Sivin, Daniel R. Mishell, et al. · Contraception · 39
Recovery of fertility and outcome of planned pregnancies after the removal of NORPLANTR subdermal implants or Copper-T IUDs
1987 · S. Díaz, M. Pavez, et al. · Contraception · 34
First week drug concentrations in women with levonorgestrel rod or Norplant® capsule implants
1997 · Irving Sivin, Pekka Lähteenmäki, et al. · Contraception · 32
Clearance of levonorgestrel from the circulation following removal of NORPLANTR subdermal implants
1988 · H.B. Croxatto, S. Díaz, et al. · Contraception · 27
Works count: 52
Citation count: 2,216
H-index: 25
I10-index: 37
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