1 Bristol Heart Institute, University of Bristol, Bristol, UK; National Institute for Health and Care Research (NIHR), Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trusts/Boards and University of Bristol, Bristol, UK. Electronic address: maria.pufulete@bristol.ac.uk.
2 Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK.
3 Cancer and Rehabilitation Unit, Scottish Government, NHS Ayrshire and Arran, Glasgow, UK.
4 NIHR Biomedical Research Centre, The Royal Marsden and Institute of Cancer Research, London, UK.
5 Policy and Public Affairs, Royal College of Anaesthetists, London, UK.
6 Department of Surgery, University Hospitals of Leicester NHS Trusts/Boards, Leicester, UK.
7 Cardiff and Vale University Health Board and Swansea Bay University Health Board, Cardiff, NHS Wales, UK.
8 Perioperative and Critical Care Theme, NIHR Southampton Biomedical Research Centre, University Hospital Southampton/University of Southampton, Southampton, UK.
9 NIHR Cancer and Nutrition Collaboration, Southampton, UK.
10 National Institute for Health and Care Research (NIHR), Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trusts/Boards and University of Bristol, Bristol, UK.