Grey literature for health

Guide to locating and evaluating grey literature in the health sciences.

Key resources

Google Advanced Search is useful for finding grey literature because it allows you to conduct a more precise search across the internet than the basic search option.

See our video below for an introduction to using Google Advanced searching (2m 27s):

See more tips on finding grey literature using Google Advanced search in our Google search tips playlist on YouTube.

Google Advanced Search
CareSearch Grey Literature database
Captures palliative care information and evidence that can be hard to find.
OpenMD
OpenMD searches billions of documents from government agencies, global health organizations, medical journals, and reference sites.
Bielefeld Academic Search Engine (BASE)
BASE is one of the world's most voluminous search engines especially for academic web resources.
Institutional Repository for Information Sharing (IRIS)
The World Health Organisation's Institutional Repository. Provides access to all World Health Organisation (WHO) publications.
Grey Matters
A Canadian search engine for finding health-related grey literature.
Mednar
Mednar is a free, medically-focused deep web search engine.
Policy Commons
A database containing public policy from around the world, with millions of reports, working papers, policy briefs, data sources, and media drawn from a directory of more than 20,000 IGOs, NGOs, think tanks, and research centres on disciplines including climate change, entrepreneurship, agriculture, energy, pharmaceuticals, diversity, crime, and more.