[1] Med Univ Vienna, Vienna, Austria
[2] CECOG, Vienna, Austria
[3] Postgrad Med Ctr, Warsaw, Poland
[4] Inst Oncol, Sarajevo, Bosnia & Herceg
[5] Palacky Univ, Sch Med, CR-77147 Olomouc, Czech Republic
[6] Teaching Hosp, Olomouc, Czech Republic
[7] Natl Inst Oncol, Budapest, Hungary
[8] Tel Aviv Univ, Tel Aviv Sourasky Med Ctr, IL-69978 Tel Aviv, Israel
[9] Univ Med & Pharm, Bucharest, Romania
[10] Onkol Ustav Sv Alzbety, Bratislava, Slovakia
[11] IST GmbH, Mannheim, Germany