Original Article
Programmed death-ligand 1 expression level as a predictor of EGFR tyrosine kinase inhibitor efficacy in lung adenocarcinoma
Minsu Kang, Changhee Park, Se Hyun Kim, Sock Won Yoon, Koung Jin Suh, Yu Jung Kim, Chan-Young Ock, Miso Kim, Bhumsuk Keam, Tae Min Kim, Dong-Wan Kim, Dae Seog Heo, Jong Seok Lee