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Sass DA, Clark K, Grzybicki D, Rabinovitz M, Shaw-Stiffel TA.Sass DA, et al. Among authors: shaw stiffel ta.Dig Dis Sci. 2007 Mar;52(3):749-52. doi: 10.1007/s10620-006-9332-9.Dig Dis Sci. 2007.PMID: 17265127No abstract available.
Weiss SA, Davis GL, Shaw-Stiffel TA.Weiss SA, et al.Gastroenterologist. 1994 Sep;2(3):247-53.Gastroenterologist. 1994.PMID: 7987623No abstract available.