1. Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
2. Institute of Endocrinology, Lithuanian University of Health Sciences, Kaunas, Lithuania
3. Pediatric Endocrine and Diabetes Unit, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals of Geneva, 1211 Geneva, Switzerland
4. Diabetes Center of the Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland