University of Nottingham, Faculty of Medicine and Health Sciences, Nottingham City Hospital, UK Centre for Tobacco and Alcohol Studies, University of Nottingham, Cardiff University, University of Nottingham, University of Nottingham, The University of Manchester - Manchester University NHS Foundation Trust, University of Nottingham, Cardiff University, University of York, Queen Mary University of London, University of Nottingham, University of York, Leeds Teaching Hospitals NHS Trust, University of Leeds, University of Leeds, Queen Mary University of London, University of Leeds, University of Leeds, University of Exeter, University of Nottingham, Leeds Teaching Hospitals NHS Trust, Cardiff University, University of Leeds and University of Leeds

affiliation not provided to SSRN, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester Thoracic Oncology Centre (MTOC), The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, Manchester Academic Health Sciences Centre - The Christie NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, The University of Manchester - Manchester University NHS Foundation Trust, affiliation not provided to SSRN, affiliation not provided to SSRN, The Christie NHS Foundation Trust, affiliation not provided to SSRN, Manchester Academic Health Sciences Centre - The Christie NHS Foundation Trust, Manchester Academic Health Sciences Centre - The Christie NHS Foundation Trust and The University of Manchester - Manchester University NHS Foundation Trust

Leeds Teaching Hospitals NHS Trust, Queen Mary University of London, The University of Manchester - Manchester University NHS Foundation Trust, Queen Mary University of London, University of Leeds, Leeds Teaching Hospitals NHS Trust, University of Leeds, Queen Mary University of London, Leeds Teaching Hospitals NHS Trust, University of Leeds and University of Leeds