How to Do a Systematic Review Regard to Health: A Narrative Review

Review articles are divided by two categories including narrative and systematic reviews. Systematic review assesses related studies using a scientific planned method to answer a relevant research question. The overall structure of a systematic review is comprised of seeking and finding related studies, apprising them according to clear criteria, combining the results and presenting them Obviously and succinctly. This type of review helps decision makers to decide correctly regard to a topic which has been examined in various studies. Systematic review needs achieving experience and having enough time and the authors should have sufficient authority on the topic. Relatively identical processes have been suggested by different authors that usually include formulating the research question, setting the research protocol, literature search, extracting data, quality assessment, data analysis and presenting the data, and results interpretation. Performing these stages needs to consider the protocol or plan that usually has developed by the authors before beginning the study and following it may avoid any bios and deviation from the research line. The sections that are in a research article such as abstract, introduction, methods, results and discussion should also be considered in a systematic review article.