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://countryscenesaddleryandpetsuppliers.shop/product-category/lunging-system/