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Lu M, Malladi V, Agha A, Abudayyeh S, Han C, Siepman N, Graham DY.Lu M, et al. Among authors: graham dy.Dig Dis Sci. 2007 Oct;52(10):2813-20. doi: 10.1007/s10620-007-9811-7. Epub 2007 Mar 28.Dig Dis Sci. 2007.PMID: 17393309Clinical Trial.