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APA Citation
Cao, H., Wang, Q., Gao, Z., Yu, Z., Wu, Y., & Lu, Q. (2019). programmed death-ligand 1 and survival in colorectal cancers: A meta-analysis. International journal of biological markers, 34(4), 356–363. http://access.bl.uk/ark:/81055/vdc_100094384168.0x00000f