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Collins CE, Ayturk MD, Flahive JM, Emhoff TA, Anderson FA Jr, Santry HP.Collins CE, et al.J Am Coll Surg. 2014 Jun;218(6):1141-1147.e1. doi: 10.1016/j.jamcollsurg.2014.01.053. Epub 2014 Feb 28.J Am Coll Surg. 2014.PMID: 24755188Free PMC article.