[1] Aalborg Univ, Dept Hlth Sci & Technol Publ Hlth & Epidemiol, DK-9220 Aalborg, Denmark
[2] Aalborg Univ, Dept Clin Med, DK-9000 Aalborg, Denmark
[3] Aalborg Univ Hosp, Dept Oncol, Clin Canc Res Ctr, DK-9000 Aalborg, Denmark
[4] Aalborg Univ Hosp, Clin Canc Res Ctr, Sdr Skovvej 15, DK-9000 Aalborg, Denmark
[5] Aalborg Univ Hosp, Clin Nursing Res Unit, Sdr Skovvej 15, DK-9000 Aalborg, Denmark