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van der Pool AE, Lalmahomed ZS, de Wilt JH, Eggermont AM, Ijzermans JM, Verhoef C.van der Pool AE, et al. Among authors: verhoef c.J Gastrointest Surg. 2009 May;13(5):890-5. doi: 10.1007/s11605-008-0794-2. Epub 2009 Jan 9.J Gastrointest Surg. 2009.PMID: 19132450Free article.