1. Department of Neonatology; University Hospital Zurich; Zurich Switzerland
2. Zentrum für Kinder und Jugendmedizin; University Freiburg; Freiburg Germany
3. Mount Sinai Health System; The Louis Armstrong Center for Music & Medicine; New York City USA
4. Institute for Evidence in Medicine; Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg; Freiburg Germany