1. Center for Gender Surgery, Boston Children's Hospital, Boston, Massachusetts, USA.
2. Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, Massachusetts, USA.
3. Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, Massachusetts, USA.
4. Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA.
5. Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA.