WHO | Male circumcision for HIV prevention 割包皮能够使男性在异性性交中感染 HIV 的几率降低 60%http://www.who.int/hiv/topics/malecircumcision/en/ …
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WHO | Male circumcision for HIV prevention 割包皮能够使男性在异性性交中感染 HIV 的几率降低 60%http://www.who.int/hiv/topics/malecircumcision/en/ …