1. Department of Primary Care and Public Health, School of Medicine; Cardiff University, The Pharma Research Centre, Cardiff MediCentre; Cardiff; UK
2. Division of Clinical and Experimental Medicine; University of Birmingham & Diabetes Centre, Heart of England NHS Trust; Edgbaston; Birmingham; UK
3. Department of Medicine; University Hospital of Wales; Heath Park; Cardiff; UK
4. Global Epidemiology, Pharmatelligence; Cardiff MediCentre; Cardiff; UK