Literature Search
We searched for articles in the PubMed (includes Medline), Cochrane Library, and Clinicaltrials.gov databases up until September 2019. We also did literature mining from a pertinent systematic review. With these strategies, a total of 50 articles were retrieved after taking into account duplicates. After screening these 50 non-duplicate articles using the inclusion and exclusion criteria, 37 articles were excluded. The full texts of 13 remaining citations were then reviewed to assess appropriateness for inclusion in the meta-analysis, where in the process, 8 articles were excluded. Thus, only 5 citations were finally included for pooling in the meta-analysis. The PRISMA diagram summarizing the results of the search strategy is shown inFigure 1 . The characteristics of the 5 studies based on the following parameters are shown in Table 1 : General Details, Inclusion Criteria, Exclusion Criteria, Intervention, and Outcomes.