Agency for Health are Research and Quality (AHRQ) - Full text clinical practice guidelines, preventive services, outcomes and effectiveness,information for consumers.
Cardiology Guidelines - Evidence-based clinical practice guidelines from the American Heart Association, American College of Cardiology, American College of Chest Physicians, Heart Rhythm Society, and others.
Centers of Disease Control and Prevention (CDC) - Searching the CDC website requires Boolean operators. Easy to understand instructions are available. Scroll down to the bottom half of the page.
Morbidity and Mortality Weekly Report (MMWR) - Full-text online versions of the weekly MMWR are available on this site. Searching requires Boolean operators in caps (AND, OR, NOT). Instructions are printed at the bottom the search page, MMWR Search.
Disclaimer from MMWR: HTML versions are not considered official documents. Rely only on PDF (electronic) and print vesions. The full version of the disclaimer is posted at the end of HTML versions of articles from the MMWR.
NCCN Clinical Practice Guidelines in Oncology™ - The recognized standard for clinical policy in the oncology community. These guidelines are updated continually and are based upon evaluation of scientific data integrated with expert judgment by multidisciplinary panels of expert physicians from NCCN Member Institutions.
NIH Clinical Alerts - Expedite the release of findings from NIH funded clinical trials when the information could significantly affect morbidity and mortality.
NIH Consensus Development Program - Consensus statements on a variety of issues in medicine of importance to health care providers, patients and the general public.
National Guideline Clearinghouse - Evidence-based clinical practice guidelines.