PRISMA diagram of records selection.

We identified 11,593 records across 6 databases, out of which 1284 duplicate records were removed. We excluded 1233 records that were related to patent applications, diagnostic tests, forensic analysis, and irrelevant content. Among the 76 potentially eligible studies, 63 were excluded due to being abstracts, lacking an adequate control group, or being ongoing clinical trials. Ultimately, we included 13 studies for this meta-analysis.