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Description: The study selection process will be carried out by two independent reviewers. Reviewers 1 and 2 will carry out a calibration exercise before the start of Phase 1, whose task consists of independently reading the titles and abstracts of ten articles and subsequent discussion. Phase 1 consists of reading the titles and abstracts of all the articles found based on established search strategy, in selected databases. These will be imported into the reference manager, after deleting the duplicates. Subsequently, the two reviewers will evaluate the articles with the intention of including them for Phase 2 or discarding them, respecting the eligibility criteria. After this process, the reviewers will analyze the disagreements and try to reach consensus. If they do not agree, Reviewer 3 will analyze and make the final decision. Once again, a calibration will be carried out, now based on the reading, conference and discussion of five complete articles. Phase 2 is operationally similar to the previous phase. However, now the reviewers will read the articles that reached this stage in full and again the differences can be solved by Reviewer 3. Subsequently, the additional search step will be carried out in two ways. The first from the list of bibliographic references used in the included studies, to find possible studies that were not identified in the initial search. The second way will be through contact via email with the main authors in the area. Finally, the reviewers will meet to once again seek a consensus and definition of the selected articles.