[1] Univ Southern Denmark, Dept Psychol, Campusvej 55, DK-5230 Odense M, Denmark
[2] Univ Warwick, Warwick Med Sch, Coventry, W Midlands, England
[3] Zealand Univ Hosp, Roskilde, Denmark
[4] Univ Southern Denmark, Dept Reg Hlth Res, Odense, Denmark
[5] Bispebjerg Hosp, Dept Palliat Med, Copenhagen, Denmark
[6] Univ Copenhagen, Dept Publ Hlth, Copenhagen, Denmark