[1] Univ Vienna, Vienna Gen Hosp, Dept Surg 21A, Div Transplantat, A-1010 Vienna, Austria
[2] Univ Vienna, Vienna Gen Hosp, Dept Radiotherapy & Radiobiol, A-1010 Vienna, Austria
[3] Univ Vienna, Vienna Gen Hosp, Inst Biomed Res, A-1010 Vienna, Austria
[4] Univ Vienna, Vienna Gen Hosp, Inst Clin Pathol, A-1010 Vienna, Austria
[5] Univ Vienna, Vienna Gen Hosp, Surg Res Labs, A-1010 Vienna, Austria
[6] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Transplantat Biol Res Ctr, Boston, MA USA