Quality improvement: science and action.Ting, Henry H; Shojania, Kaveh G; Montori, Victor M; Bradley, Elizabeth HCirculation; 2009 Apr 14;119(14):1962-74. PMID: 19364989Knowledge and Encounter Research Unit, Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN 55905, USA. ting.henry@mayo.eduCategory: Additional ResourcesLinks: PubMed ArticleJournal Article