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Shrank WH, Patrick AR, Brookhart MA.Shrank WH, et al. Among authors: patrick ar.J Gen Intern Med. 2011 May;26(5):546-50. doi: 10.1007/s11606-010-1609-1. Epub 2011 Jan 4.J Gen Intern Med. 2011.PMID: 21203857Free PMC article.Review.