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HHS/SOC 456: Health Care & the Law

This guide supports HHS 456, which deals with legal issues in health care.

What is Grey Literature?

Grey literature is the unpublished, non-commercial, hard-to-find information that organizations such as professional associations, research institutes, think tanks, and government departments produce.

Grey literature can include: 

  • census and statistical data
  • reports (pre-prints, preliminary progress and advanced reports, technical reports, statistical reports, memoranda, state-of-the art reports, market research reports, etc.)
  • theses and dissertations
  • conference proceedings
  • bibliographies
  • systematic reviews
  • official documents not published commercially (primarily government reports and documents)


Go to the sub-sections of this page for some recommended sources, or browse through some comprehensive lists of organizations that publish grey literature using the links below. 

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