1. Primary Care Epidemiology, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
2. Cancer Research UK Oxford Centre, Department of Oncology, University of Oxford, Oxford, United Kingdom
3. Leicester Real World Evidence Unit, Leicester Diabetes Centre, University of Leicester, Leicester, United Kingdom
4. Division of Primary Care, School of Medicine, University of Nottingham, Nottingham, United Kingdom
5. Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom
6. MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom
7. Primary Care Research Centre, University of Southampton, Southampton, United Kingdom