[1] Guys Hosp, Renal Unit, London SE1 9RT, England
[2] Semmelweis Univ, Dept Transplantat & Surg, H-1085 Budapest, Hungary
[3] Semmelweis Univ, Inst Behav Sci, H-1085 Budapest, Hungary
[4] Kings Coll Hosp London, Renal Unit, London, England
[5] St Helier Hosp, Dept Renal Med, Carshalton SM5 1AA, Surrey, England
[6] Royal London, Renal Unit, London, England
[7] James Cook Univ Hosp, Renal Unit, Middlesbrough, Cleveland, England
[8] Belfast City Hosp, Reg Nephrol Unit, Belfast BT9 7AD, Antrim, North Ireland
[9] Swansea Univ, Morriston Hosp, Renal Unit, Swansea, W Glam, Wales
[10] Jules Verne Univ, CHU Amiens, Nephrol & Transplantat Dept, Amiens, France
[11] Jules Verne Univ, ERI 12, INSERM, Amiens, France
[12] Manchester Royal Infirm, Dept Renal Med, Manchester M13 9WL, Lancs, England
[13] Univ Hosp CI Parhon Iasi, Iasi, Romania
[14] Univ Med Gr T Popa, Iasi, Romania