1. Department of Pediatric Endocrinology, Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit , 1081 HZ, Amsterdam , The Netherlands
2. Department of Endocrinology and Metabolism, Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit , 1081 HZ, Amsterdam , The Netherlands
3. Amsterdam Gastroenterology Endocrinology Metabolism , Amsterdam , The Netherlands
4. Amsterdam Reproduction and Development , Amsterdam , The Netherlands