[1] Univ Opole, Inst Med Sci, Dept Oncol, Opole, Poland
[2] Tadeusz Koszarowski Reg Canc Ctr, Dept Clin Oncol, Opole, Poland
[3] Jagiellonian Univ Hosp Krakow, Krakow, Poland
[4] Univ Opole, Inst Math & Comp Sci, Opole, Poland
[5] Comprehens Canc Ctr Bialystok, Med Oncol Dept, Bialystok, Poland
[6] Med Univ Lodz, Copernicus Mem Hosp Lodz, Dept Chemotherapy, Lodz, Poland
[7] Copernicus Mem Hosp Lodz, Lodz, Poland
[8] Lower Silesian Oncol Ctr, Clin Oncol Dept, Wroclaw, Poland
[9] Warmia & Mazury Oncol Ctr, MSWiA Hosp, Oncol & Immunooncol Clin, Olsztyn, Poland
[10] West Pomeranian Oncol Ctr Szczecin, Szczecin, Poland
[11] Med Univ Gdansk, Dept Oncol & Radiotherapy, Gdansk, Poland
[12] Kociewie Hlth Ctr Starogard Gdanski, Oncol Dept, Starogard Gdanski, Poland
[13] Pomeranian Med Univ, Clin Dept Oncol Chemotherapy & Canc Immunotherapy, Szczecin, Poland
[14] Med Univ Warsaw, Cent Clin Hosp MSWiA, Clin Oncol & Hematol, Warsaw, Poland
[15] Cent Clin Hosp MSWiA, Clin Oncol & Breast Dis, Ctr Postgrad Med Educ, Warsaw, Poland
[16] Beskidian Oncol Ctr Bielsko Biala, Dept Oncol & Oncohematol, Bielsko Biala, Poland