Grey Literature
Provides resources and information on how to search for "grey literature."
- Overview Toggle Dropdown
- Databases
- Conferences
- Clinical Trials/Regulatory Data
- Reports & Reviews
- Other Resources
Why Search for Reports & Reviews?
Many organizations that conduct research produce reports of their findings that are never published but are accessible via their websites. These reports often include facts and analysis you may not find in other published materials.
Think Tank Search
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Harvard Kennedy School Library & Knowledge Services Think Tank SearchA Google Custom Search of more than 250 think tank & research centers.
Reports & Reviews
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AHRQ Technology AssessmentsThe Agency for Healthcare Research & Quality provides technology assessments to the Centers for Medicare & Medicaid. Includes completed and in-progress assessments. Also archives assessments from 1990-2006.
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AHRQ: Evidence-based Practice Center (EPC) ReportsCompleted reports & technology assessments.The Evidence-based Practice Centers (EPC) Program awards 5-year contracts to institutions in the United States and Canada to serve as EPCs. The EPCs review all relevant scientific literature on clinical, behavioral, and organization and financing topics to produce evidence reports and technology assessments.
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AHRQ: Effective Health Care ReportsIn English and Spanish.Guides, reviews, and reports produced by individual researchers, research centers, and academic organizations funded by the Effective Health Care Program. Research focuses on effectiveness and comparative effectiveness for clinicians, consumers, and policymakers. View What is the Effective Health Care Program? for more information.
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California Technology Assessment ForumCTAF is a public service forum that assesses new and emerging medical technologies.
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Centre for Reviews & Dissemination (CRD)Conducts systematic reviews and research into health and social care interventions.
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The Cochrane LibraryA collection of databases that contain different types of high-quality, independent evidence to inform healthcare decision-making.
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Defense Advanced Research Projects Agency (DARPA)Projects include Med-Devices, Neuroscience, & more. Search by tag.
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Drug Effectiveness Review Project (DERP)From the Oregon Health & Science University.DERP produces systematic, evidence-based reviews of the comparative effectiveness and safety of drugs.
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EPPI-Centre DatabasesThe Evidence for Policy and Practice Information and Co-ordinating Centre conducts systematic reviews across a range of topics.
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Health Services/Technology Assessment Text (HTSAT)Full text documents of a variety of reports. Also search other titles in the Bookshelf.Coordinated by the National Information Center on Health Sciences Research and Health Care Technology.
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Health Technology Assessment International (HTAi)Search using the Interest Sub-groups menu.
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HSRR (Health Services and Sciences Research Resources)Research datasets & instruments used in research in the health services. From the National Information Center on Health Services Research and Health Care Technology (NICHSR).
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ICSI Health Care GuidelinesBrowse documents by type in the drop-down listThe Institute for Clinical Systems Improvement is an independent, non-profit organization, comprised of 61 medical groups representing 9,000 physicians, that helps its members provide evidence-based health care services to people in Minnesota and surrounding states.
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Kaiser Family FoundationBrowse reports by topic & type.The Kaiser Family Foundation conducts health policy research and analysis, operates a health news and information service, and runs health information campaigns.
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Kennedy School of Government Think Tank SearchA Google Custom Search of more than 1200 think tanks and research centers.
Last Updated: Jun 25, 2025 9:46 AM
Subjects: Health Sciences
Tags: gray literature