[1] CHU Caen, Nephrol Ctr, Caen, France
[2] Clin Univ St Luc, Nephrol, Brussels, Belgium
[3] Hop Tenon, Nephrol & Dialyses, Paris, France
[4] Hosp Navarra, Serv Nefrol, Pamplona, Spain
[5] Hosp Univ La Paz, Serv Nefrol, Madrid, Spain
[6] Ctr Trapianti Rene Niguarda Hosp, Nefrol, Milan, Italy
[7] Queen Alexandra Hosp, Wessex Renal & Transplantat Unit, Portsmouth, Hants, England
[8] Royal Shrewsbury Hosp, Renal Unit, Shrewsbury, Salop, England
[9] Univ Bari, Sect Nephrol & Dialysis, Bari, Italy