Closing sexual health service gaps with a new service model in Germany: performance of an on-site integrated, cross-sectoral, low threshold sexually transmitted infections/hiv counseling and treatment service - Müller, Matthias Christian (Verfasser); Usadel, Susanne (Verfasser); Zimmermann, Stefan (Verfasser); Fahrhöfer, Andreas (Verfasser); Kern, Winfried V. (Verfasser); Hoffmeister, Ulrike (Verfasser); Rieg, Siegbert (Verfasser) (Universität, 2022)