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Nguyen NT, Anderson JT, Budd M, Fleming NW, Ho HS, Jahr J, Stevens CM, Wolfe BM.Nguyen NT, et al.Surg Endosc. 2004 Jan;18(1):64-71. doi: 10.1007/s00464-002-8786-x. Epub 2003 Nov 21.Surg Endosc. 2004.PMID: 14625752Clinical Trial.