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Table 3 Number of unique included references by each specific database

From: Optimal database combinations for literature searches in systematic reviews: a prospective exploratory study

Database Number of reviews that used the database Number of reviews with unique references Number of unique references
Embase 58 29 (50%) 132 (45%)
MEDLINE 58 27 (47%) 69 (24%)
Web of Science 58 19 (33%) 37 (13%)
Google Scholar 58 24 (41%) 37 (13%)
CINAHL 18 1 (6%) 6 (2%)
Scopus 24 3 (13%) 5 (2%)
PsycINFO 11 1 (9%) 2 (1%)
SportDiscus 2 2 (100%) 3 (1%)