[1] Vrije Univ Brussel, End Life Care Res Grp, Brussels, Belgium
[2] Vrije Univ Brussel, Family Med & Chron Care, Brussels, Belgium
[3] UCSF, Neurol, San Francisco, CA USA
[4] Univ Hosp Ghent, Dept Geriatr Med, Ghent, Oost Vlaanderen, Belgium
[5] Ghent Univ Hosp, Med Oncol, Ghent, Belgium
[6] Univ Ghent, Dept Pharmacol, Ghent, Belgium
[7] KULeuven, Interfac Ctr Biomed Ethiek Recht, Leuven, Belgium