[1] Aarhus Univ, Dept Clin Epidemiol, Dept Clin Med, Olof Palmes Alle 43-45, DK-8200 Aarhus N, Denmark
[2] Aarhus Univ Hosp, Olof Palmes Alle 43-45, DK-8200 Aarhus N, Denmark
[3] Aarhus Univ, Oncol Dept, Dept Clin Med, Palliat Care Unit, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark
[4] Aarhus Univ Hosp, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark
[5] Vejle Hosp, Dept Oncol, Kabbeltoft 25, DK-7100 Vejle, Denmark
[6] Univ Southern Denmark, Dept Reg Hlth Res, DK-5000 Odense, Denmark
[7] Aalborg Univ, Danish Ctr Clin Hlth Serv Res, Dept Clin Med, Frederik Bajers Vej 5, DK-9220 Aalborg O, Denmark
[8] Aalborg Univ Hosp, Frederik Bajers Vej 5, DK-9220 Aalborg O, Denmark