In this section, the study selection process including the steps considered for the selection of articles in this review is presented. In addition, the results for each of the research questions is presented in the following subsections.
Study selection
Figure 1 presents the article identification and selection process. The search strategy retrieved 553 studies from the three databases and and additional 8 papers were manually included after searching in the reference lists of the identified studies. After removing duplicates found in different sources, 435 studies remained for further…
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