[1] Imperial Coll Healthcare NHS Trust, London, England
[2] Epsom & St Helier Univ Hosp NHS Trust, Carshalton, Surrey, England
[3] Univ Liverpool, Sch Hlth Sci, Inst Clin Sci, Liverpool, Merseyside, England
[4] Univ Hosp Leicester NHS Trust, Leicester, Leics, England
[5] Kidney Care, Alton, England
[6] Mid & South Essex NHS Fdn Trust, Westcliff On Sea, Essex, England
[7] Univ Hosp Derby & Burton NHS Fdn, Derby, England
[8] Univ Nottingham, Nottingham, England
[9] Manchester Univ NHS Fdn Trust, Manchester, Lancs, England
[10] Guys & St Thomas NHS Trust, London, England
[11] Leicester Diabet Ctr, Leicester, Leics, England
[12] Keele Univ, Keele, Staffs, England
[13] Univ Hosp Wales, Cardiff, Wales
[14] Univ Hosp Birmingham NHS Fdn Trust, Birmingham, W Midlands, England
[15] Univ Coll London Hosp NHS Trust, London, England
[16] Royal Devon & Exeter NHS Trust, Exeter, Devon, England
[17] Norfolk & Norwich Univ Hosp NHS Fdn Trust, Norwich, Norfolk, England
[18] Royal London Hosp, Dept Diabet & Metab, 7th Floor,John Harrison House, London E1 1BB, England