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Roberts MM, Elton RA, Robinson SE, French K.Roberts MM, et al. Among authors: elton ra.Br J Surg. 1987 Nov;74(11):1020-2. doi: 10.1002/bjs.1800741121.Br J Surg. 1987.PMID: 3690227
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Roberts MM, Jones V, Elton RA, Fortt RW, Williams S, Gravelle IH.Roberts MM, et al. Among authors: elton ra.Br Med J (Clin Res Ed). 1984 Jan 28;288(6413):275-8. doi: 10.1136/bmj.288.6413.275.Br Med J (Clin Res Ed). 1984.PMID: 6419893Free PMC article.