[1] Cornenius Univ, Fac Med, Bratislava, Slovakia
[2] Natl Canc Inst, Bratislava, Slovakia
[3] Slovak Acad Sci, Canc Res Inst, Bratislava, Slovakia
[4] Inst Normal & Pathol Physiol, Bratislava, Slovakia
[5] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[6] Thomas Jefferson Univ, Kimmel Canc Ctr, Philadelphia, PA 19107 USA