National Guideline Clearinghouse, Agency for Healthcare Research and Quality, Department of Health and Human Services; http://www.guideline.gov/
2.
Shaneyfelt TM,Mayo-Smith MF,Rothwangl J.Are guidelines following guidelines? The methodological quality of clinical practice guidelines in peer-reviewed medical literature..JAMA. 1999;281 ((20)): 1900-5
3.
Smith C,Cowan C,Sensenig A, et al.Health spending growth slows in 2004..Health Aff. 2006;25 ((1)): 186-96
4.
Asch SM,McGlynn EA,Hogan MM, et al.Comparison of quality of care for patients in the Veterans Health Administration and patients in a national sample..Ann Intern Med. 2004;141 ((12)): 938-45
5.
Asch SM,Kerr EA,Keesey J, et al.Who is at greatest risk for receiving poor-quality care?.N Engl J Med. 2006;354 ((11)): 1147-56