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Osborne NH, Nicholas LH, Ghaferi AA, Upchurch GR Jr, Dimick JB.Osborne NH, et al. Among authors: nicholas lh.J Am Coll Surg. 2010 Jan;210(1):87-92. doi: 10.1016/j.jamcollsurg.2009.09.038.J Am Coll Surg. 2010.PMID: 20123337
Dimick JB, Nicholas LH, Ryan AM, Thumma JR, Birkmeyer JD.Dimick JB, et al. Among authors: nicholas lh.JAMA. 2013 Feb 27;309(8):792-9. doi: 10.1001/jama.2013.755.JAMA. 2013.PMID: 23443442Free PMC article.