1. Department of Medicine (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048
2. Department of Molecular and Clinical Endocrinology and Oncology (A.C.), Federico II University of Naples, 80138 Naples, Italy
3. Division of Endocrinology and Metabolism (A.B.), University of Michigan Medical Center, Ann Arbor, Michigan 48109
4. Endocrinology Clinic (M.M.), Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
5. Department of Endocrinology (A.B.G.), St. Bartholomew’s Hospital, London EC1A 7BE, United Kingdom
6. Department of Medicine (D.K.), New York University Medical Center, New York, New York 10016
7. Division of Endocrinology (D.C.), University of North Carolina, Chapel Hill, North Carolina 27599
8. Assistance Publique-Hôpitaux de Paris (P.C.), Department of Endocrinology and Reproductive Diseases, Hôpital de Bicêtre and Université Paris-Sud 11, Le Kremlin-Bicêtre F-94276, France
9. Department of Neurosurgery (E.L.), Brigham & Women’s Hospital, Boston, Massachusetts 02115
10. Department of Internal Medicine (J.S.), University of Iowa, Iowa City, Iowa 52242
11. Department of Medicine (M.L.V.), University of Virginia, Charlottesville, Virginia 22904
12. Pituitary Research Unit (K.H.), Garvan Institute of Medical Research, Sydney NSW 2010, Australia
13. Department of Internal Medicine (A.G.), University of Brescia, 25121 Brescia, Italy