“…Systematic reviews/meta-analyses (both abbreviated as SR), RCTs, and cohort studies were evaluated using modified versions of the Scottish Intercollegiate Guideline Network (SIGN) checklist [31][32][33] (https://www.sign.ac.uk/ checklists-and-notes). Using the SIGN checklists, each article is scored as "high quality, low risk of bias," "acceptable quality, moderate risk of bias," "low quality, high risk of bias," or "unacceptable" quality.…”