1 Clinical Population and Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, UK.
2 Diabetes Centre, St James's University Hospital, Leeds Teaching Hospitals Trust, Leeds, UK.
3 Patient author, UK.
4 The BMJ, UK.
5 Human Development and Health, Faculty of Medicine, University of Southampton, UK.
6 Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.
7 Indiana University School of Public Health, Bloomington, Indiana, USA.