Shah Nilay D, Montori Victor M, Krumholz Harlan M, Tu Karen, Alexander G Caleb, Jackevicius Cynthia A
Knowledge and Encounter Research Unit, Mayo Clinic, Rochester, MN, USA.
N Engl J Med. 2010 Nov 25;363(22):2081-4. doi: 10.1056/NEJMp1011042. Epub 2010 Nov 17.