[1] Univ Leeds, Patient Centred Outcomes Res Grp, Leeds Inst Med Res & St Jamess, Leeds, W Yorkshire, England
[2] Univ Leeds, Leeds Inst Hlth Sci, Leeds, W Yorkshire, England
[3] Univ Leeds, Sch Healthcare, Leeds, W Yorkshire, England
[4] Leeds Teaching Hosp NHS Trust, St Jamess Univ Hosp, Leeds Canc Ctr, Leeds, W Yorkshire, England