1. Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy.
2. Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom.
3. Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.
4. Department of Dermatology, Addenbrookes Hospital, Cambridge, United Kingdom.
5. Genetics and Genomics Programme, UCL GOS Institute of Child Health London; Great Ormond St Hospital for Children, London, United Kingdom.
6. Department of Endocrinology, Great Ormond St Hospital for Children, London, United Kingdom.
7. IRCCS, SDN, Naples, Italy.
8. Department of Molecular Medicine and Medical Biotechnology, and University of Naples Federico II, Naples, Italy.
9. Department of Public Health, University of Naples Federico II, Naples, Italy.