Box 6.3.c: Example of exclusion of MEDLINE and EMBASE records when searching CENTRAL

Note: the example is for illustrative purposes only. A search of CENTRAL for a systematic review on this topic would require a wide range of alternative terms for both tamoxifen and breast cancer.

#1

#2

#3

#4

#5

#6

#7

"accession number" near pubmed

"accession number" near2 embase

#1 or #2

tamoxifen

(breast near cancer)

#4 and #5

#6 not #3