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Grey Literature in the Health Sciences: General Sources and Databases

Guide to locating and evaluating grey literature (or gray literature) in the health sciences.

General Sources for Grey Literature

Here are listed some general sources of grey literature. Some focus on the health sciences, while others are more general in scope.

Searching Databases for Grey Literature

The following databases include various types of grey literature along with publisher-controlled literature. If you are interested in searching only for grey literature, consider restricting the "publication type" in your search. These types can include: technical report, dissertation, patent, meeting paper, annual report or government publication, among others.