1. Department of Pediatrics, University Clinical Hospital in Opole, 45-040 Opole, Poland
2. Faculty of Health Sciences, University of Opole, 45-060 Opole, Poland
3. Department of Pediatrics, Institute of Medical Sciences, University of Opole, 47-100 Strzelce Opolskie, Poland
4. Auf der Bult, Diabetes Center for Children and Adolescents, 30173 Hannover, Germany
5. Department of Cardiology, Institute of Medical Sciences, University of Opole, 45-040 Opole, Poland
6. Pediatric Unit, Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, University of Messina, 98122 Messina, Italy
7. Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera Università di Verona, 37126 Verona, Italy
8. Pediatrics Unit, Hospital Vithas Almería, Instituto Hispalense de Pediatría, 04120 Almería, Spain
9. Department of Nursing Sciences, Physiotherapy, and Medicine, Faculty of Health Sciences, University of Almería, 04120 Almería, Spain
10. Steno Diabetes Center Copenhagen, 2730 Herlev, Denmark
11. Department of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
12. Department of Biomedical and Clinical Sciences, Linköping University, 58183 Linköping, Sweden