1. End-of-Life Care Research Group, Vrije Universiteit Brussel (VUB) and Ghent University
2. European Palliative Care Research Centre (PRC), Department of Oncology, Oslo University Hospital, and Institute of Clinical Medicine, University of Oslo
3. Department of Supportive Care, Princess Margaret Cancer Centre, University Health Network
4. Department of Public Health and Primary Care, Ghent University
5. Laboratory of Medical and Molecular Oncology, Oncology Research Center, Vrije Universiteit Brussel