1. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, California.
2. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, California.
3. Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
4. Department of Pediatrics, The University of Pennsylvania, The Perelman School of Medicine, Philadelphia, Pennsylvania.
5. Department of Clinical and Experimental Medicine, University of Messina School of Medicine, Messina, Italy.
6. Interdepartmental Program of Molecular and Clinical Endocrinology and Women's Endocrine Health, University hospital Policlinico G Martino, Messina, Italy.
7. Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
8. Department of Endocrinology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
9. Division of Endocrinology, Diabetes, and Metabolism; Joan and Sanford I. Weill Department of Medicine; Weill Cornell Medical College, New York, New York.
10. Department of General Surgery, Division of Endocrine Surgery, Texas Tech University Health Sciences Center, El Paso, Texas.
11. Section of Endocrinology, Diabetes and Metabolism; University of Illinois College of Medicine, Chicago, Illinois.
12. Department of Otolaryngology, SUNY Downstate Medical Center, Brooklyn, New York.
13. Division of Endocrinology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.