1. Center for Pediatric Palliative Care, University Children’s Hospital, Ludwig-Maximilians University of Munich, Munich, Germany
2. Institute of Ethics, History and Theory of Medicine, Ludwig-Maximilians University of Munich, Munich, Germany
3. Geriatric Palliative Care, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne, Switzerland
4. Palliative Care Service, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne, Switzerland