1. Department of Child and Adolescent Psychiatry, Center of Expertise on Gender Dysphoria, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
2. GGZ-Noord-Holland-Noord, Division Triversum, Centre for Child and Adolescent Psychiatry, Heiloo, The Netherlands.
3. Department of Medical Psychology, Center of Expertise on Gender Dysphoria, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.