Evidence-based research provides the basis for sound clinical practice guidelines and recommendations. The database of guidelines available from the National Guideline Clearinghouse and the recommendations of the U.S. Preventive Services Task Force are especially useful.
Internet Citation: AHRQ Clinical Practice Guidelines. February 2015. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/redirects/AZRedirects/ClinPracGuide.html