Results
The literature search yielded a total of 12,859 non-duplicate documents (PubMed=1719, EMBASE=6106, and WOS=5034). After evaluating titles and abstracts, 1165 articles underwent full-text review. Of these, 1111 articles were excluded due to reasons listed in the PRISMA flow diagram (Fig. 1). Finally, 56 publications were included in this analysis. A tabular summary of all analyses performed are presented in Table 1.