Fig. A.1.

Article selection flowchart.

Nine hundred and sixty five studies identified through electronic search and 4 through manual search, totaling 363 articles after duplicates removed, published between January and October 2020 were evaluated. After reading the titles and abstracts, 291 articles were excluded. Of the 72 articles selected for reading in full text, 29 were excluded. Forty three were fully evaluated, four being excluded when the inclusion / exclusion criteria were applied, totaling thirty nine articles included for the current review .