[1] Kings Coll London, Guys Hosp, MRC Ctr Transplantat, Kings Hlth Partners, London SE1 9RT, England
[2] Univ Leuven, Dept Urol, Leuven, Belgium
[3] Bianchi Melacrino Morelli Hosp, Dept Urol & Renal Transplantat, Reggio Di Calabria, Italy
[4] Southampton Univ Hosp NHS Fdn Trust, Dept Urol, Southampton, Hants, England
[5] Heidelberg Univ, SLK Kliniken, Dept Urol, Heilbronn, Germany
[6] Univ Autonoma Barcelona, Dept Urol, Fundacio Puigvert, Barcelona, Spain
[7] Guys & St Thomas NHS Fdn Trust, Urol Ctr, London, England
[8] Kings Coll Hosp NHS Fdn Trust, Dept Urol, London, England
[9] European Sch Urol ESU, Training & Res Grp, Barcelona, Spain