1. Neuroendocrine Clinical Center, Massachusetts General Hospital (B.M.K.B., A.K., B.S.), Boston, Massachusetts 02114
2. Department of Endocrinology (A.B.G.), St. Bartholomew’s Hospital, London EC1A 7BE, United Kingdom
3. Division of Medical Sciences (P.M.S.), University of Birmingham, Queen Elizabeth Hospital, Birmingham B29 6JD, United Kingdom
4. Department of Medicine (S.M.), Cedars Sinai Medical Center, Los Angeles, California 90048
5. Department of Endocrinology Department (X.B., J.B.), Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine Paris Descartes, 75014 Paris, France
6. Department of Neurochirurgische Klinik (M.B.), Universität Erlangen, 91054 Nürnberg, Germany
7. Dipartimento di Endocrinologia ed Oncologia Molecolare e Clinica (A.C.), Università degli Studi di Napoli Federico II, 80131 Napoli, Italy
8. Department of Endocrinology (A.R.H.), University Medical Center Nijmegen, 6000500 HB Nijmegen, The Netherlands
9. Department of Internal Medicine (L.J.H.), Division of Endocrinology, Erasmus Medical Center, 3000 CA Rotterdam, The Netherlands
10. Division of Endocrinology (A.L.), Department of Medicine, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec H2W 1T8, Canada
11. Division of Altnagelvin Area Hospital (J.R.L), Londonderry BT47 6SB, United Kingdom
12. Division of The Medical School (J.N.-P.), University of Sheffield, Sheffield S10 2TN, United Kingdom
13. Division of Reproductive Biology and Medicine Branch (L.K.N.), National Institutes of Health, Bethesda, Maryland 20892
14. Division of Endocrinology (S.P.), University of Essen, 45122 Essen, Germany
15. Department of Statistical Sciences (N.S.), University of Padova, 35122 Padova, Italy
16. Department of Endocrinology (G.K.S.), Max Planck Institute of Psychiatry, 80804 Munich, Germany
17. University of Virginia Health System (M.L.V.), Charlottesville, Virginia 22903
18. Department of Endocrinology (J.A.H.W.), Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford OX3 7LJ, United Kingdom
19. Division of Endocrinology (M.B), Institute of Internal Medicine, Polytechnic University of Marche, 60126 Ancona, Italy