[1] Chiang Mai Univ, Fac Med, Dept Med, Chiang Mai 50000, Thailand
[2] Braila Cty Emergency Hosp, Braila, Romania
[3] Inst Oncol & Radiol Serbia, Belgrade, Serbia
[4] Clin Ctr Kragujevac, Kragujevac, Serbia
[5] Boehringer Ingelheim Ltd, Dept Oncol, Bracknell, Berks, England
[6] Boehringer Ingelheim Rcv Gmbh & Co Kg, Dept Oncol, Vienna, Austria
[7] Cairo Univ, Natl Canc Inst, Cairo, Egypt