1. Department of Pediatrics, Gastroenterology and Nutrition, Institute of Pediatrics, Jagiellonian University Medical College, 31-008 Cracow, Poland
2. Interclinical Center for the Treatment of Childhood Obesity, University Children’s Hospital of Krakow, 30-663 Kraków, Poland
3. Department of Pediatric and Adolescent Endocrinology, Pediatric Institute, Jagiellonian University Medical College, 31-008 Kraków, Poland