Objective Our study aimed to evaluate the prognostic and clinicopathological significance of pretreatment mean platelet volume (MPV) on cancer by using meta-analysis of published studies. Design Meta-analysis. Data sources Relevant studies available before 22 December 2019 were identified by searching MEDLINE. EMBASE. https://www.jmannino.com/mega-price-Lunette-PIT-VIPER-THE-ABSOLUTE-LIBERTY-NARROW-Polarisee-amazing-save/