[1] Ludwig Maximilians Univ Munchen, Univ Hosp Grosshadern, Dept Surg, Munich, Germany
[2] Lmu, Transplant Ctr, Munich, Germany
[3] Charite, Dept Surg, Campus Virchow Clin, Berlin, Germany
[4] Univ Erlangen Nurnberg, Dept Med, Div Nephrol, Erlangen, Germany
[5] Univ Med Ctr, Dept Internal Med Nephrol & Transplantat 2, Regensburg, Germany
[6] Univ Rostock, Dept Urol, Rostock, Germany
[7] Univ Munster, Dept Surg, Munster, Germany