Posada, I. C., & Gómez-Arias, R. D. (2007). Market and risk: Stages of HIV transmission among men with homosexual behaviors. Medellín 1993-2006. Colombia Médica.
Styl ChicagoPosada, Isabel Cristina, a Rubén Darío Gómez-Arias. "Market and Risk: Stages of HIV Transmission Among Men With homosexual Behaviors. Medellín 1993-2006." Colombia Médica 2007.
Citace podle MLAPosada, Isabel Cristina, a Rubén Darío Gómez-Arias. "Market and Risk: Stages of HIV Transmission Among Men With homosexual Behaviors. Medellín 1993-2006." Colombia Médica 2007.
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