1. Students Scientific Association, Department of Paediatrics, Medical University of Silesia in Katowice, Zabrze, Poland
2. Department of Paediatrics, Medical University of Silesia in Katowice, Faculty of Medical Sciences in Zabrze, Zabrze, Poland
3. Department of Radiology and Radiodiagnostics, Medical University of Silesia in Katowice, Faculty of Medical Sciences in Zabrze, Zabrze, Poland
4. Department of Surgery of Developmental Disorders of Children and Traumatology, Medical University of Silesia in Katowice, Faculty of Medical Sciences in Zabrze, Zabrze, Poland
5. Department of Neonatal Intensive Care and Pathology, Medical University of Silesia in Katowice, Faculty of Medical Sciences in Zabrze, Zabrze, Poland