The PRISMA 2020 statement: An improved reporting guideline for systematic reviews
Introduction Conducting a Systematic Review provides several important responsibilities. They can provide summaries of the state of knowledge in a field, from which future research priorities can be identified; they can answer questions that individual studies would otherwise be unable to answer; they can locate imperfections in primary research that should be addressed in future studies, and they can generate or evaluate theories about how or why phenomena occur. As a result, systematic reviews create varied types of knowledge for various review consumers (such as patients, healthcare providers, researchers, and policymakers). To ensure that a systematic review is useful to users, writers should provide a clear, thorough, and accurate description of why the review was conducted, what they did (such as how studies were located and selected), and what they discovered (such as characteristics of contributing studies and results of meta-analyses). Authors can succeed with the help of up-t...