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. 2019 Oct 16;16(20):3940. doi: 10.3390/ijerph16203940

Table 2.

Search results.

Database Results for P
(n)
Results for I
(n)
Results for O
(n)
Search Results
(n)
PubMed 31,713 333 265,208 1
Medline 25,671 292 310,806 1
BMČ (Medvik) 196 1 1572 0
EBSCO discovery 112,674 1547 2,905,734 8
ERIC 2980 255,974 1,673,393 0
Wiley Online Library 9980 0 2,300,473 0
EBM Reviews 4962 39 37,242 1
ProQuest 99,370 652 2,756,038 4
Scopus 59,723 2407 2,649,382 2
CINAHL Plus 8998 40 60,427 0
Cochrane Library 77 45 99 0
JBI 38 484 2 1
Prospero 598 0 92 0
MedNar * 1388 313 2385 344
Google Scholar * cca 550,000 cca 8990 cca 5,560,000 461

* Results for primary keywords, not the synonyms.