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Nguyen-tat M, Pohl J, Günter E, Manner H, Plum N, Pech O, Ell C.Nguyen-tat M, et al. Among authors: pech o.Z Gastroenterol. 2008 Mar;46(3):274-8. doi: 10.1055/s-2007-963429.Z Gastroenterol. 2008.PMID: 18322883
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Pech O, Gossner L, May A, Ell C.Pech O, et al.Best Pract Res Clin Gastroenterol. 2001 Apr;15(2):267-84. doi: 10.1053/bega.2001.0173.Best Pract Res Clin Gastroenterol. 2001.PMID: 11355915Review.
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Pech O, May A, Rabenstein T, Gossner L, Ell C.Pech O, et al.Langenbecks Arch Surg. 2003 Dec;388(6):421-4. doi: 10.1007/s00423-003-0423-1. Epub 2003 Oct 29.Langenbecks Arch Surg. 2003.PMID: 14586661
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