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The benefits of moving quality to a national level.
Califf RM. Califf RM. Am Heart J. 2008 Dec;156(6):1019-22. doi: 10.1016/j.ahj.2008.09.005. Epub 2008 Nov 5. Am Heart J. 2008. PMID: 19032994 Free PMC article. No abstract available.