Risk factors for human immunodeficiency virus infection and unprotected anal intercourse among young men who have sex with men.
| Autor: | Ruiz J, Facer M, Sun RK, Ruiz, J, Facer, M, Sun, R K |
|---|---|
| Zdroj: | Sexually Transmitted Diseases; Feb98, Vol. 25 Issue 2, p100-107, 8p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|