[1] Oxford Brookes Univ, Oxford Inst Nursing Midwifery & Allied Hlth Res, Oxford OX3 0FL, England
[2] Univ Birmingham, Sch Sport Exercise & Rehabil Sci, Birmingham B15 2TT, England
[3] Imperial Coll Healthcare NHS Trust, Charing Cross Hosp, Nursing Directorate, London W6 8RF, England
[4] Patient Representat, London, England
[5] Univ Bristol, Bristol Med Sch, Populat Hlth Sci, Bristol BS8 2PS, England
[6] Univ Stirling, Div Psychol, Stirling FK9 4LA, Scotland
[7] Univ Birmingham, Inst Head & Neck Studies & Educ InHANSE, Inst Canc & Genom Sci, Birmingham B15, England
[8] Univ Bristol, Bristol Dent Sch, Bristol BS1 2LY, England
[9] Oxford Brookes Univ, Fac Hlth & Life Sci, Oxford Sch Nursing & Midwifery, Oxford OX3 0FL, England