Risk Factors for Human Immunodeficiency Virus Infection and Unprotected Anal Intercourse Among Young Men Who Have Sex With Men
Autor: | RUIZ, JUAN, FACER, MATTHEW, SUN, RICHARD K. |
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Zdroj: | Sexually Transmitted Diseases, 1998 Feb 01. 25(2), 100-107. |
Databáze: | JSTOR Journals |
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