1. Division of Endocrinology (S.P.), Medical Center, University of Duisburg-Essen, D-45122 Essen, Germany
2. Medizinische Klinik Innenstadt (J.S.), University of Munich, D-80336 Munich, Germany
3. Novartis Pharmaceuticals Corporation (P.M., Y.-Y.H., K.H.), East Hanover, New Jersey 07936
4. Department of Molecular and Clinical Endocrinology and Oncology (A.C.), University Federico II, I-80125 Naples, Italy
5. Department of Endocrinology (R.A.), University of Antwerp, BE-2000 Antwerpen, Belgium
6. University of Michigan Medical Center (A.B.), Ann Arbor, Michigan 48109
7. Novartis Pharma AG (A.B.), CH-4056 Basel, Switzerland
8. University of Edinburgh (A.J.F.), Western General Hospital, Edinburgh EH4 2XU, UK
9. Cedars-Sinai Medical Center (S.M.), Los Angeles, California 90048
10. Neuroendocrine Clinical Center (B.M.K.B.), Massachusetts General Hospital, Boston, Massachusetts 02114