Swensen Stephen J, Meyer Gregg S, Nelson Eugene C, Hunt Gordon C, Pryor David B, Weissberg Jed I, Kaplan Gary S, Daley Jennifer, Yates Gary R, Chassin Mark R, James Brent C, Berwick Donald M
Mayo Clinic, Rochester, MN, USA.
N Engl J Med. 2010 Feb 4;362(5):e12. doi: 10.1056/NEJMp0911199. Epub 2010 Jan 20.