[1] Univ Hosp Martin, Transplant Ctr, Martin, Slovakia
[2] Comenius Univ, Jessenius Fac Med, Bratislava, Slovakia
[3] Univ Hosp Martin, Dept Internal Dis 1, Martin, Slovakia
[4] St Elizabeth Canc Inst, Dept Pathol, Bratislava, Slovakia
[5] Univ Hosp Martin, Transplant Ctr, Kollarova 2, Martin 03601, Slovakia