Evidence-based clinical practice guidelines are developed and regularly updated by professional associations, organizations, and other groups or individuals. They may provide related resources such as implementation tools and patient education materials.
Grey literature includes materials such as research reports, technical reports, theses, evidence summaries, reviews, and conference proceedings, that are not commercially published, i.e. not found in journals. In fact, clinical practice guidelines are a type of grey literature.
Drugs, health devices and technologies:
Obstetrics, gynecology and reproductive health:
Public health:
Medical practice guidelines: