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Chow WB, Rosenthal RA, Merkow RP, Ko CY, Esnaola NF; American College of Surgeons National Surgical Quality Improvement Program; American Geriatrics Society.Chow WB, et al. Among authors: rosenthal ra.J Am Coll Surg. 2012 Oct;215(4):453-66. doi: 10.1016/j.jamcollsurg.2012.06.017. Epub 2012 Aug 21.J Am Coll Surg. 2012.PMID: 22917646No abstract available.