1. Department of Development and Regeneration; University of Leuven; Leuven Belgium
2. Department of Pediatric Endocrinology; Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke; Datteln Germany
3. Department of Endocrinology; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, University of Barcelona; Barcelona Spain
4. Department of Pediatric Endocrinology and Diabetes; Istanbul Faculty of Medicine, University of Istanbul; Istanbul Turkey
5. Dr. Josep Trueta Hospital and Girona Institute for Biomedical Research; Girona Spain