Sexual Dysfunctions in Patients Receiving Opioid Agonist Treatment and Heroin-Assisted Treatment Compared to Patients in Private Practice—Identifying Group Differences and Predicto... oleh Maximilian Meyer, Patrick Brunner, Leonie Geissmann, Martin Gürtler, Fabienne Schwager, Rowena Waldis, Marc Vogel, Gerhard A. Wiesbeck, Kenneth M. Dürsteler, Kenneth M. Dürsteler