Sexual harm reduction practices of HIV-seropositive gay and bisexual men: serosorting, strategic positioning, and withdrawal before ejaculation

Parsons, Jeffrey T ; Schrimshaw, Eric W ; Wolitski, Richard J ; Halkitis, Perry N ; Purcell, David W ; Hoff, Colleen C ; Gómez, Cynthia A

AIDS (London), 2005-04, Vol.19 Suppl 1 (Supplement 1), p.S13-S25 [Periódico revisado por pares]

England

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