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Segal I, Paterson A, Walker AR.Segal I, et al. Among authors: walker ar.J Clin Gastroenterol. 1986 Oct;8(5):530-3. doi: 10.1097/00004836-198610000-00007.J Clin Gastroenterol. 1986.PMID: 3782750
Walker AR, Segal I.Walker AR, et al.Br Med J. 1979 May 19;1(6174):1352-3. doi: 10.1136/bmj.1.6174.1352-c.Br Med J. 1979.PMID: 445063Free PMC article.No abstract available.