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Kaufman JA, Houghland JE, Quiroga E, Cahill M, Pellegrini CA, Oelschlager BK.Kaufman JA, et al. Among authors: oelschlager bk.Surg Endosc. 2006 Dec;20(12):1824-30. doi: 10.1007/s00464-005-0329-9.Surg Endosc. 2006.PMID: 17063301