[1] Univ Hosp Llandough, Diabet Resource Ctr, Penlan Rd, Cardiff CF64 2XX, Wales
[2] Hlth Econ & Outcomes Res Ltd, Cardiff, Wales
[3] Univ Wales Hosp, Dept Cardiol, Cardiff, Wales
[4] Cardiff Univ, Cardiff, Wales
[5] Cwm Taf Univ Hlth Board, Dept Cardiol, Rhondda Cynon Taf, Wales
[6] East Sussex Healthcare NHS Trust, St Leonards On Sea, England
[7] UCL, Dept Diabet, Div Med, Royal Free Campus, London, England
[8] SA1 Med Practice, Swansea, W Glam, Wales
[9] Univ Hosp Birmingham NHS Fdn Trust, Birmingham, W Midlands, England
[10] Northenden Grp Practice, Manchester, Lancs, England
[11] Stoke Rd Surg, Cheltenham, Glos, England
[12] Univ Liverpool, Aintree Univ Hosp, Dept Cardiovasc & Metab Med, Liverpool, Merseyside, England
[13] Swansea Univ, Med Sch, Diabet Res Unit, Swansea, W Glam, Wales