[1] Inst Oncol, IL-69978 Cluj Napoca, Romania
[2] Inst Oncol & Radiotherapy, Belgrade, Serbia
[3] Tel Aviv Univ, Tel Aviv Sourasky Med Ctr, Dept Oncol, Tel Aviv, Israel
[4] Univ Zagreb, Univ Hosp Zagreb Rebro, HR-10002 Zagreb, Croatia
[5] Latvian Ctr Oncol, Riga, Latvia
[6] Univ Zagreb, Univ Hosp Tumors, HR-10002 Zagreb, Croatia
[7] Semmelweis Univ, Dep Diagnost Radiol & Oncotherapy, Budapest, Hungary
[8] P Stradins Univ Hosp, Riga, Latvia
[9] Med Univ Vienna, Div Clin Oncol, Vienna, Austria