1. Department of Internal Medicine, Erasmus University Medical Center, 3000 Rotterdam, The Netherlands
2. Wellcome–Medical Research Council Institute of Metabolic Science, University of Cambridge, CB2 0QQ Cambridge, United Kingdom
3. The Children’s Memorial Health Institute, 04-730 Warsaw, Poland
4. Department of Pediatrics, Division of Endocrinology, University of Patras Medical School, 25002 Patras, Greece
5. Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, 35100 Izmir, Turkey
6. Department of Cell Biology, Erasmus University Medical Center, 3000 Rotterdam, The Netherlands