1. Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia; Università Federico II di Napoli; Naples Italy
2. ENDOC Center for Endocrine Tumors; Hamburg Germany
3. The Medical School; University of Sheffield; Sheffield UK
4. Division of Endocrinology, Metabolism, and Clinical Nutrition; Medical College of Wisconsin; Milwaukee WI USA
5. Department of Endocrinology; Key Laboratory of Endocrinology; Ministry of Health; Peking Union Medical College Hospital; Chinese Academy of Medical Sciences; Beijing China
6. Clinical Development, Oncology Business Unit; Novartis Pharma AG; Basel Switzerland
7. Novartis Pharmaceuticals Corporation; East Hanover NJ USA
8. Division of General Internal Medicine; Hospital das Clínicas; University of São Paulo Medical School; São Paulo Brazil
9. Division of Endocrinology; Department of Medicine; Centre hospitalier de l'Université de Montréal; Montreal QC Canada
10. Medizinische Klinik IV; University of Munich; Munich Germany
11. Neuroendocrine Clinical Center; Massachusetts General Hospital; Boston MA USA