Irving Sivin

Health during prolonged use of levonorgestrel 20μg/d and the Copper TCu 380Ag intrauterine contraceptive devices: a multicenter study

Irving Sivin, Janet Stern · Fertility and Sterility · 1994 · 248 citations

Medicine, Gynecology, Obstetrics +16

International Experience with NORPLANT and NORPLANT-2 Contraceptives

Irving Sivin · Studies in Family Planning · 1988 · 237 citations

Medicine, Gynecology, Obstetrics +15

Prolonged intrauterine contraception: A seven-year randomized study of the levonorgestrel 20 mcg/day (LNg 20) and the Copper T380 Ag IUDS

Irving Sivin, Janet Stern, Elsimar Metzker Coutinho et al. · Contraception · 1991 · 237 citations · Full text

Medicine, Gynecology, Obstetrics +14

Long-term contraception with the levonorgestrel 20 mcg/day (LNg 20) and the Copper T 380Ag intrauterine devices: A five-year randomized study

Irving Sivin, Sayed El Mahgoub, Terence McCarthy et al. · Contraception · 1990 · 180 citations

Medicine, Gynecology, Obstetrics +13

Safety, efficacy, and acceptability of medical abortion in China, Cuba, and India: A comparative trial of mifepristone-misoprostol versus surgical abortion

Beverly Winikoff, Irving Sivin, Kurus Coyaji et al. · American Journal of Obstetrics and Gynecology · 1997 · 179 citations

Medicine, Gynecology, Obstetrics +14