1. AUF DER BULT Diabetes Center for Children and Adolescents Hannover Germany
2. Department of Pediatric and Adolescent Medicine Medical University of Vienna Vienna Austria
3. Department of Pediatrics Institute of Medical Sciences, University of Opole Opole Poland
4. Department of Pediatrics MEDIAN Clinic for Children ‘Am Nicolausholz’ Bad Kösen Naumburg Germany
5. Department of Pediatric Endocrinology, Diabetes and Metabolic Diseases UMC – University Children's Hospital, Ljubljana, Slovenia and Faculty of Medicine, University of Ljubljana Ljubljana Slovenia