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AHRQ
http://www.ahrq.gov/
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National Guideline Clearinghouse (NGC)
http://www.guideline.gov/
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FDA
http://www.fda.gov/
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Clinical Trials
http://www.clinicaltrials.gov/
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National Institute for Health and Clinical Excellence
http://www.nice.org.uk/
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Oxford Centre for Evidence-Based Medicine
http://www.cebm.net/
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University Health Network’s Centre for
Evidence-Based Medicine
http://www.cebm.utoronto.ca/
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Centre for Health Evidence
http://www.cche.net/
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BMJ’s Clinical Evidence
http://www.clinicalevidence.org/ceweb/about/put_together.jsp
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The Cochrane Collaboration
http://www.cochrane.org/
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Health Technology Assessment International
http://www.htai.org
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The International Network of Agencies for Health
Technology Assessment
http://www.inahta.org
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GRADE Working Group
http://www.gradeworkinggroup.org
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NIH Consensus Development Program
http://consensus.nih.gov/
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ECRI Health Technology Assessment Information Services
http://www.ta.ecri.org/htais