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Original Research

Expression of programmed cell death protein 1 (PD-1) and its ligand PD-L1 in colorectal cancer: Relationship with sidedness and prognosis

ORCID Icon ORCID Icon, , , , &
Article: e1465165 | Received 22 Jan 2018, Accepted 09 Apr 2018, Published online: 11 Jun 2018