Grey Literature is a field in library and Information science that deals with the production, distribution, and access to multiple document types produced on all levels of government, academia, business, and organization in electronic and print formats not controlled by commercial publishing i.e. where publishing is not the primary activity of the producing body. Our purpose is to direct you to health sciences focused literature that might otherwise be lost because it is not indexed in our commonly used tools such as PubMed, CINAHL, Web of Science, etc.

Abstracts, poster presentations, and presented papers are considered grey literature because they may never be seen other than by those who attended the conference. However, they can be a good source of information about studies, particularly studies that never made it to publication.

• National Technical Reports Library (NTIS) 

  The NTIS serves as the largest central resource for government-funded scientific, technical, engineering, and business related information available today. For more than 60 years NTIS has assured businesses, universities, and the public timely access to approximately 3 million publications covering over 350 subject areas.
• Technology Assessment (TA) Program 

  The Technology Assessment (TA) Program at the Agency for Healthcare Research and Quality (AHRQ) provides technology assessments for the Centers for Medicare & Medicaid Services (CMS). These technology assessments are used by CMS to inform its national coverage decisions for the Medicare program as well as provide information to Medicare carriers.