[1] Univ Hosp, Hradec Kralove, Czech Republic
[2] Med Sch Hradec Kralove, Hradec Kralove, Czech Republic
[3] Fac Hosp Brno, Brno, Czech Republic
[4] Roswell Pk Canc Inst, Buffalo, NY 14263 USA
[5] Sarah Cannon Res Inst, Nashville, TN USA
[6] Genentech Inc, San Francisco, CA 94080 USA