[1] Natl Inst Oncol, Budapest, Hungary
[2] Tel Aviv Univ, Tel Aviv Sourasky Med Ctr, IL-69978 Tel Aviv, Israel
[3] Univ Hosp Salzburg, Salzburg, Austria
[4] Med Univ Vienna, Vienna, Austria
[5] Univ Sarajevo, Inst Oncol, Clin Ctr, Sarajevo 71000, Bosnia & Herceg
[6] Univ Szeged, Szeged, Hungary
[7] Canc Inst I Chiricuta, Cluj Napoca, Romania
[8] Oncol Ctr Latvia, Riga, Latvia
[9] Med Univ Vienna, Dept Med 1, Div Clin Oncol, Vienna, Austria