Correlation between expression of programmed cell death-ligand 1 protein and prognosis of lung cancer:A Meta-analysis
LI Shimeng, PAN Baoxiang, LI Tong, XIE Feng, WANG Hai
Journal of Jilin University(Medicine Edition) . 2015, (05): 969 -973 .  DOI: 10.13481/j.1671-587x.20150516