1. Department of Pediatric Endocrinology and Diabetes; University Hospital Zagreb; Zagreb Croatia
2. Department of Pediatrics; University Hospital Center Split; Split Croatia
3. Department of Pediatrics; University Hospital ‘Sestre milosrdnice’; Zagreb Croatia
4. Department of Pediatrics; University Hospital Center Osijek; Osijek Croatia
5. Department of Pediatrics; University Hospital Center Rijeka-Kantrida; Rijeka Croatia