1. Department of Paediatrics, School of Medicine, Faculty of Health, HELIOS Hospital Wuppertal, Witten/Herdecke University, Wuppertal, Germany
2. Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children’s Hospital, Duesseldorf, Germany
3. Sana Hospital Duesseldorf, Centre of Child Neurology Duesseldorf-Gerresheim, Duesseldorf, Germany
4. HELIOS Children’s Hospital, Neonatology, Wuppertal, Germany
5. Department of Paediatrics, University Hospital Duesseldorf, Germany