Results obtained | Medline | Other search engines (b) | Grey literature (c) | Total |
---|---|---|---|---|
Total results | 1084 | 13200 | 30 | 14314 |
“Suggestive” title (d) | 178 | 1597 | 25 | 1800 |
Not related (e) | 90 | 1295 | 0 | 1385 |
Duplicates | 9 | 88 | 0 | 97 |
Not found | 30 | 146 | 0 | 176 |
Not vaccines of the national immunization program | 7 | 18 | 0 | 25 |
Included in the search | 42 | 50 | 25 | 117 |