1. Coordination Center for Pediatric Palliative Care, Interdisciplinary Center for Palliative Medicine and Dr. von Haunersches Kinderspital, Ludwig-Maximilians-University Munich, Munich, Germany.
2. Interdisciplinary Center for Palliative Medicine, Ludwig-Maximilians-University Munich, Munich, Germany.
3. Service de Soins Palliatifs, Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne, Lausanne, Switzerland.