1 Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA.
2 Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, The Netherlands.
3 Joachim en Anna, Center for Specialized Geriatric Care, Nijmegen, The Netherlands.
4 Marie Curie Palliative Care Research Department, Division of Psychiatry, UCL, London, UK.
5 Barnet, Enfield and Haringey Mental Health Liaison Service, North Middlesex University Hospital NHS Trust, London, UK.
6 Aging and Palliative Care, VUB-UGhent End-of-Life Care Research Group, Vrije Universiteit Brussel (VUB), Department of Family Medicine and Chronic Care, Brussels, Belgium.
7 University New South Wales, Kensington, Australia.