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The results clearly showed that this peptide regulatory factor is confined to the luminal surface and foveolae in the stomach, restricted to the villous epithelium in the small intestine, and in the colon was seen in the upper one third of the crypt. This pattern indicates that the distribution of this peptide regulatory factor is within the differentiated compartment and indicates a role in differentiation besides its well known proliferative effects.<\/jats:p>","DOI":"10.1136\/gut.33.5.628","type":"journal-article","created":{"date-parts":[[2007,9,18]],"date-time":"2007-09-18T17:41:31Z","timestamp":1190137291000},"page":"628-631","source":"Crossref","is-referenced-by-count":84,"title":["Immunoreactivity of transforming growth factor alpha in the normal adult gastrointestinal tract."],"prefix":"10.1136","volume":"33","author":[{"given":"D M","family":"Thomas","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M M","family":"Nasim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W J","family":"Gullick","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M R","family":"Alison","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1992,5,1]]},"reference":[{"key":"ref_1","first-page":"2104","article-title":"Expression of growth factor and epidermal growth factor receptor encoded transcripts in human gastric tissue","volume":"49","author":"Bennett, C.; Paterson, I.M.; Corbishley, C.M.; Luqmani, Y.A.","year":"1989","unstructured":"Bennett C, Paterson IM, Corbishley CM, Luqmani YA. 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