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Overall cumulative median analysis on relative recall with a cut-off of three included studies
| Combination of databases | Median recall (IQR) |
|---|---|
| M + E + C | 90.1% (81.1–100%) |
| M + E + C + S | 90.1% (83.3–100%) |
| M + E + C + S + Ci | 100% (84.5–100%) |
Abbreviations: M + E + C MEDLINE + EMBASE + CENTRAL, M + E + C + S MEDLINE + EMBASE + CENTRAL + SCOPUS, M + E + C + S + Ci MEDLINE + EMBASE + CENTRAL + SCOPUS+ Cinahl
