Wang, Lin Prognostic effect of programmed death-ligand 1 (PD-L1) in ovarian cancer: a systematic review, meta-analysis and bioinformatics study. [electronic resource] - Journal of ovarian research Apr 2019 - 37 p. digital Publication Type: Journal Article; Meta-Analysis; Systematic Review ISSN: 1757-2215 Standard No.: 10.1186/s13048-019-0512-6 doi Subjects--Topical Terms: B7-H1 Antigen--geneticsComputational Biology--methodsFemaleHumansOvarian Neoplasms--geneticsPrognosis