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Gross ER, Christensen M, Schultz JA, Cassidy LD, Anderson Y, Arca MJ.Gross ER, et al.J Am Coll Surg. 2015 Oct;221(4):828-36. doi: 10.1016/j.jamcollsurg.2015.07.014. Epub 2015 Jul 20.J Am Coll Surg. 2015.PMID: 26299570