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Driver JA, Beiser A, Au R, Kreger BE, Splansky GL, Kurth T, Kiel DP, Lu KP, Seshadri S, Wolf PA.Driver JA, et al.BMJ. 2012 Mar 12;344:e1442. doi: 10.1136/bmj.e1442.BMJ. 2012.PMID: 22411920Free PMC article.