1. Division of Neuropsychology Children's National Hospital Washington DC USA
2. Center for Neuroscience, Children's National Research Institute Children's National Hospital Washington DC USA
3. Department of Child and Adolescent Psychiatry, Center of Expertise on Gender Dysphoria Amsterdam University Medical Centers, Location Vrije Universiteit Amsterdam The Netherlands
4. Margaret and Wallace McCain Centre for Child, Youth & Family Mental Health, Campbell Family Mental Health Research Institute Centre for Addiction and Mental Health Toronto Ontario Canada
5. Department of Human Development and Quantitative Methodology University of Maryland College Park Maryland USA
6. Department of Pediatrics George Washington University School of Medicine Washington DC USA
7. Department of Psychiatry, and Behavioral Sciences George Washington University School of Medicine Washington DC USA