This is the free version of the Cochrane Library. Abstracts include the recommendations from the systematic reviews but the detailed full-text summaries are not free.

The physiotherapy evidence-based database.

The granddaddy of biomedical databases. Twenty million+ citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to free full-text content from PubMed Central and publisher web sites. Apply the Nursing Journals Subsets limit to restrict your search to nursing journals.

Clinical meta-search engine for evidence-based resources, including evidence-based synopses, systematic reviews, clinical guidelines, and primary research articles.