1. Neonatal Intensive Care and Pathology of Newborn Unit Upper Silesian Center for Child's Health Katowice Poland
2. Pediatrics Clinic The Upper‐Silesian Child Health Care Katowice Poland
3. Gynecology and Obstetrics Unit with Oncological Gynecology Subunit Center of Oncology Katowice Poland
4. Department of Children's Diabetology Medical University of Silesia Katowice Poland