1. Division of Endocrinology, Georgetown University, Washington, DC.
2. Division of Endocrinology, Rush University Medical Center, Chicago, Illinois.
3. Division of Endocrinology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
4. Endocrine Section, Medstar Washington Hospital Center, Washington, DC.
5. Division of Endocrinology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
6. Division of Endocrinology, Virginia Commonwealth University School of Medicine, Richmond, Virginia.
7. Division of Endocrinology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
8. Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.
9. Program for Bioethics, Department of Internal Medicine, University of Kentucky College of Medicine, Lexington, Kentucky.
10. Division of Endocrinology, University Health Network and University of Toronto, Toronto, Ontario, Canada.