Gredig, DanielImhof, ChristophFavre, Olivier2016-07-112016-07-112015-01-14http://hdl.handle.net/11654/22745en360 - Soziale Probleme, Sozialdienste, VersicherungenProtective Factors Facilitating Consistent “Safer Sex” Practice over Decades in Men Having Sex with Men in Switzerland Confirm the Importance of Structural Prevention Approaches. Poster06 - Präsentation1-10