scholarly journals The association of PD-L1 expression with the efficacy of anti-PD-1/PD-L1 immunotherapy and survival of non-small cell lung cancer patients: a meta-analysis of randomized controlled trials

2019 ◽  
Vol 8 (4) ◽  
pp. 413-428 ◽  
Author(s):  
Yangyang Xu ◽  
◽  
Bing Wan ◽  
Xi Chen ◽  
Ping Zhan ◽  
...  
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