Özkan  B, Erdoğdu  E, Duman  S, Amirov  F, Çimenoğlu  B, Özlük  Y, Kara  M, Yılmazbayhan  D, Toker  A. Prognostic factors in patients undergoing pulmonary resection for sarcomatoid carcinomas of the lung. Balkan Med J 2021;38:104-110