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The caecal tumours were anaplastic and contained no demonstrable opioid activity.<\/jats:p>","DOI":"10.1136\/gut.20.10.865","type":"journal-article","created":{"date-parts":[[2007,9,18]],"date-time":"2007-09-18T17:41:31Z","timestamp":1190137291000},"page":"865-867","source":"Crossref","is-referenced-by-count":9,"title":["Enkephalins in large bowel malignancy and in acute appendicitis."],"prefix":"10.1136","volume":"20","author":[{"given":"W G","family":"Davis","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W P","family":"Tormey","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P V","family":"Delaney","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1979,10,1]]},"reference":[{"key":"ref_1","first-page":"388","article-title":"Surgical Pathology","author":"Ackerman, L.V.","year":"1968","unstructured":"Ackerman, L. 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