1. Department of Child and Adolescent Psychiatry and Center of Expertise on Gender Dysphoria, Amsterdam University Medical Centers, Location VUmc, Amsterdam, The Netherlands.
2. Department of Medical Psychology, Center of Expertise on Gender Dysphoria, Amsterdam University Medical Centers, Location VUmc, Amsterdam, The Netherlands.
3. Center for Sexology and Gender, Pediatric Gender Clinic, Ghent University Hospital, Ghent, Belgium.
4. Department of Epidemiology and Biostatistics, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, Location VUmc, Amsterdam, The Netherlands.