1. University Center for Palliative Care, University Hospital, Inselspital Bern, Switzerland.
2. Division of Palliative Medicine, University of Toronto and University Health Network, Toronto, Ontario, Canada.
3. Palliative Care Unit, Internal Medicine Clinic, Spital Thun, Thun, Switzerland.
4. Palliative Care Unit, Internal Medicine Clinic, Spital Emmental, Burgdorf, Switzerland.