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Databases searched in the randomly selected 100 meta-analyses (in decreasing frequency)
| Database searched | Number of Papers (%) |
|---|---|
| EMBASE | 67 (67) |
| MEDLINE | 59 (59) |
| PubMed | 54 (54) |
| Cochrane Library | 44 (44) |
| Web of Science | 22 (22) |
| SCOPUS | 16 (16) |
| CINAHL | 11 (11) |
| PsycINFO | 10 (10) |
| Clinicaltrials.gov | 10 (10) |
| LILACS | 3 (3) |
| AMED | 2 (2) |
| BIOSIS | 2 (2) |
| EBSCO | 1 (1) |
| TOXNET | 1 (1) |
| Google Scholar | 1 (1) |
| HMIC | 1 (1) |
