Abstract Introduction Umbrella review is one of the terms used to describe an overview of systematic reviews. During the last years. a rapid increase in the number of umbrella reviews on epidemiological studies has been observed. but there is no systematic assessment of their methodological and reporting characteristics. https://sczmusve1rlevc.collectblogs.com/79711586/the-effect-of-interurban-movements-on-the-spatial-distribution-of-population