Concurrent Sexual Partnerships and Human Immunodeficiency Virus Risk Among South African Youth
Autor: | Steffenson, Annie E., Pettifor, Audrey E., Seage, George R., Rees, Helen V., Cleary, Paul D. |
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Zdroj: | Sexually Transmitted Diseases, 2011 Jun 01. 38(6), 459-466. |
Databáze: | JSTOR Journals |
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