[1] VUB, Brussels, Belgium
[2] Univ Ghent, End Of Life Care Res Grp, Brussels, Belgium
[3] VUB, Dept Family Med & Chron Care, Brussels, Belgium
[4] Natl Observ End Life Care, Paris, France
[5] Karolinska Inst, Aging Res Ctr, Stockholm, Sweden
[6] Stockholm Univ, Stockholm, Sweden
[7] Univ Southampton, Hlth Sci, Southampton, Hants, England
[8] ISPO, Canc Prevent & Res Inst, Clin & Descript Epidemiol Unit, Florence, Italy
[9] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[10] Vrije Univ Amsterdam Med Ctr, EMGO Inst Hlth & Care Res, Publ & Occupat Hlth, Amsterdam, Netherlands
[11] Vrije Univ Amsterdam Med Ctr, Palliat Care Expertise Ctr, Amsterdam, Netherlands
[12] Hammond Care, Sydney, NSW, Australia
[13] Univ Sydney, Sydney, NSW, Australia
[14] Govt Andalusia, Minist Hlth, Seville, Spain
[15] Univ Alberta, Fac Nursing, Edmonton, AB, Canada
[16] Charles Univ Prague, Fac Med 3, Ctr Palliat Care, Prague, Czech Republic
[17] Univ Pecs, Sch Med, Pecs, Hungary
[18] Dongduk Womens Univ, Hlth Sci, Seoul, South Korea
[19] Univ Washington, Cambia Palliat Care Ctr Excellence, Div Gerontol & Geriatr, Seattle, WA USA
[20] Univ Ghent, Dept Med Oncol, Ghent, Belgium