1. Neonatology and Paediatric Intensive Care, Department of Paediatrics, Philipps-University Marburg, 35043 Marburg, Germany
2. Department of Paediatric Surgery, Philipps-University Marburg, 35037 Marburg, Germany
3. Department of Child and Adolescent Psychiatry, Vitos Klinik, 34745 Herborn, Germany
4. Department of Acute and Emergency Medicine, Diakonie-Hospital Wehrda, Philipps-University Marburg, 35041 Marburg, Germany
5. Reinfried-Pohl-Zentrum for Medical Learning, Philipps-University Marburg, 35043 Marburg, Germany