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Smith NL, Savage PJ, Heckbert SR, Barzilay JI, Bittner VA, Kuller LH, Psaty BM.Smith NL, et al. Among authors: heckbert sr.J Am Geriatr Soc. 2002 Mar;50(3):416-23. doi: 10.1046/j.1532-5415.2002.50103.x.J Am Geriatr Soc. 2002.PMID: 11943034