1. Division of Cardiology; Pediatric Heart Center; University Children's Hospital; Zurich Switzerland
2. Children's Research Center; University Children's Hospital; Zurich Switzerland
3. Nursing and MTTB; University Hospital Zürich and Institute of Nursing Science; University of Basel; Basel Switzerland
4. Division of Neonatology and Intensive Care; Pediatric Heart Center; University Children's Hospital; Zurich Switzerland
5. Division of Cardiovascular Surgery; Pediatric Heart Center; University Children's Hospital; Zurich Switzerland