1. Jagiellonian University, Medical College, Pediatric Institute, Department of Pediatric and Adolescent Endocrinology, Cracow, Poland

2. University Children’s Hospital, Department of Pediatric and Adolescent Endocrinology, Cracow, Poland

3. Jagiellonian University, Medical College, Pediatric Institute, Department of Pediatric Oncology and Hematology, Cracow, Poland