1. Neuroendocrine Unit; Massachusetts General Hospital and Harvard Medical School
2. Division of Sports Medicine; Boston Children's Hospital and Harvard Medical School; Boston Massachusetts
3. Pediatric Endocrine Unit; Massachusetts General Hospital for Children and Harvard Medical School; Boston Massachusetts
4. Department of Medicine; Massachusetts General Hospital and Harvard Medical School; Boston Massachusetts
5. Eating Disorders Clinical and Research Program, Massachusetts General Hospital; Boston Massachusetts
6. Department of Psychiatry; Harvard Medical School; Boston Massachusetts