1 School of Oral and Dental Sciences, National Institute for Health Research (NIHR) Biomedical Research Unit in Nutrition, Diet and Lifestyle, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
2 School of Oral and Dental Sciences, University of Bristol, Bristol, UK.
3 Surgical Research Team, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
4 School of Social and Community Medicine, University of Bristol, Bristol, UK.
5 National Cancer Research Institute Consumer Liaison Group (NCRI CLG), Independent Cancer Patients Voice (ICPV), London, UK.
6 MRC Integrative Epidemiology Unit and Avon Longitudinal Study of Parents and Children, School of Social and Community Medicine, Bristol, UK.
7 School of Clinical Sciences, University of Bristol, Bristol, UK.
8 Cochrane Oral Health Group, School of Dentistry, University of Manchester, Manchester, UK.
9 Royal Marsden Hospital and the Institute for Cancer Research, London, UK.
10 Leeds Institute for Cancer and Pathology, University of Leeds, Leeds, UK.
11 Evidence-Based Practice Research Centre (EPRC), Faculty of Health and Social Care, Edge Hill University, Ormskirk, Lancashire, UK.