1 Department of Endocrinology, Diabetes and Metabolism, University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia.
2 Department of Pediatrics, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia.
3 Department of Paediatric Endocrinology, Royal Hospital for Children, University of Glasgow, Glasgow, United Kingdom.
4 Jesse Z. and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel.
5 Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.