1. University Hospital Zurich, 27243, Newborn Research, Department of Neonatology, University Hospital Zurich, Zurich, Switzerland
2. Dr von Haunersches Kinderspital Kinderklinik und Kinderpoliklinik der Ludwig Maximilian Universitat Munchen, 505245, Division of Neonatology, Munich, Germany;
3. 2. Department of Anesthesiology and Intensive Care Medicine, Rostock University Medical Center, Rostock, Germany, Rostock, Germany