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Kouyos, Roger D; Hasse, Barbara; Calmy, Alexandra; Cavassini, Matthias; Furrer, Hansjakob; Stöckle, Marcel; Vernazza, Pietro L; Bernasconi, Enos; Weber, Rainer; Günthard, Huldrych F; Aubert, V; Battegay, M; Bernasconi, E; Böni, J; Bucher, H C; Burton-Jeangros, C; Calmy, A; Cavassini, M; Dollenmaier, G; Egger, M; ... (2015). Increases in Condomless Sex in the Swiss HIV Cohort Study. Open Forum Infectious Diseases, 2(2), ofv077. Oxford University Press 10.1093/ofid/ofv077
