1. Center for Sexology and Gender, Ghent University Hospital & Ghent University, Ghent, Belgium;
2. Institute for Sex Research, Sexual Medicine and Forensic Psychiatry, Interdisciplinary Transgender Health Care Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany;
3. Nottingham Center for Transgender Health & Institute of Mental Health, Faculty of Medicine & Health Sciences, University of Nottingham, Nottingham, United Kingdom