Citrus fruit intake and lung cancer risk: A meta-analysis of observational studies

To explore the hypothesis that Citrus intake may reduce the risk of lung cancer.Meta-analyses of Dichotomy and dose-response relationship.We searched online literature databases including PubMed, Embase, and Cochrane Library to screen relevant articles available up to 27 July 2020. Search terms included (i) Citrus, Fruit, Diet, Dietary; (ii) cancer, neoplasm, tumor (iii)lung; (iv)case-control, cohort, prospective.The selection of studies and the...