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Databases

Health Technology Assessment Database (CRD)
http://www.crd.york.ac.uk/crdweb/

Cochrane Library
http://www.thecochranelibrary.com

INAHTA Briefs
http://www.inahta.org/publications/

UK National Library for Health (NLH)
http://www.library.nhs.uk/

US National Library of Medicine
http://www.ncbi.nlm.nih.gov/