Vivian Brache

Neutralizing antibodies against the SARS-CoV-2 Delta and Omicron variants following heterologous CoronaVac plus BNT162b2 booster vaccination

Eddy Pérez-Then, Carolina Lucas, Valter Silva Monteiro et al. · Nature Medicine · 2022 · 418 citations · Full text

Veterinary Medicine, Immunology, Infectious Diseases +17

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

Pituitary–ovarian function following the standard levonorgestrel emergency contraceptive dose or a single 0.75-mg dose given on the days preceding ovulation

H.B. Croxatto, Vivian Brache, Margarita Pavez et al. · Contraception · 2004 · 195 citations

Medicine, Endocrinology, Gynecology +15

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

Immediate pre-ovulatory administration of 30 mg ulipristal acetate significantly delays follicular rupture

Vivian Brache, Leila Cochón, Cristián Jesam et al. · Human Reproduction · 2010 · 169 citations

Medicine, Endocrinology, Gynecology +17