Prolonged intrauterine contraception: A seven-year randomized study of the levonorgestrel 20 mcg/day (LNg 20) and the Copper T380 Ag IUDS
| Autor: | Sivin, Irving, Stern, Janet, Coutinho, Elsimar, Mattos, Carlos E.R., El Mahgoub, Sayed, Diaz, Soledad, Pavez, Margarita, Alvarez, Francisco, Brache, Vivian, Thevenin, Francisco, Diaz, Juan, Faundes, Anibal, Diaz, M.Margarita, McCarthy, Terence, Mishell, D.R., Jr., Shoupe, Donna |
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| Zdroj: | In Contraception 1991 44(5):473-480 |
| Databáze: | ScienceDirect |
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