RT Journal A1 Bobrow RS T1 CLinical practice guidelines and scientific evidence JF JAMA JO JAMA YR 2009 FD July 8 VO 302 IS 2 SP 142 OP 147 DO 10.1001/jama.2009.915 UL http://dx.doi.org/10.1001/jama.2009.915 AB To the Editor: In their Editorial, Drs Shaneyfelt and Centor1 stated that guideline development should “be centralized, for example under the guidance of . . . a group similar to the US Preventive Services Task Force [USPSTF].” Why search for what already exists? The USPSTF guidelines are comprehensive, neutral, evidence-based, and referenced. They are updated as frequently as necessary. Their only shortcoming is that they seem to receive insufficient attention.