Fig. 1From: Thoracic perfusion of recombinant mutant human tumor necrosis factor (rmhTNF) can be considered as a good adjunct in the treatment of malignant pleural effusion caused by lung cancerScreening and quality evaluation of included studies. a A total of 12 studies are recruited from PubMed, Embase, Cochrane Library, OVID, SCI and CNKI databases. b, c The quality of the included studies is evaluated using the criteria established by the Cochrane manual (5.0.1 edition), and the results suggests that the included studies are of medium qualityBack to article page