Figure 2From: Can electronic search engines optimize screening of search results in systematic reviews: an empirical studyThe review has 21 included studies. The MEDLINE search retrieved 1486 records. Ultraseek ranked 726 of the records as relevant and displayed the 500 with highest relevance scores. Inclusion status (1 = not included, 2 = included) is indicated, followed by the relevance score. The positions of records of included studies are highlighted.Back to article page