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July 8, 2009

Clinical Practice Guidelines and Scientific Evidence

JAMA. 2009;302(2):142-147. doi:10.1001/jama.2009.908

To the Editor: Dr Tricoci and colleagues1 published an analysis indicating that American College of Cardiology/American Heart Association (ACC/AHA) guidelines are largely developed from lower levels of evidence or expert opinion. They concluded that there is a “need to improve the process of writing guidelines and to expand the evidence base from which clinical practice guidelines are derived.” Their first conclusion could have been better substantiated by a critical appraisal of the ACC/AHA guideline methods.2

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