Inconsistent condom use with casual partners among men who have sex with men in Brazil: a cross-sectional study
Hentges, Bruna; Knauth, Daniela Riva; Vigo, Alvaro; Teixeira, Luciana Barcellos; Leal, Andréa Fachel; Kendall, Carl; Magno, Laio; Dourado, Inês; Kerr, Ligia.