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Barnes JN, Goodwin FJ.Barnes JN, et al.Br Med J (Clin Res Ed). 1983 Feb 5;286(6363):438-9. doi: 10.1136/bmj.286.6363.438-a.Br Med J (Clin Res Ed). 1983.PMID: 6401554Free PMC article.No abstract available.
Barnes JN, Williams AJ, Tomson MJ, Toseland PA, Goodwin FJ.Barnes JN, et al.Br Med J (Clin Res Ed). 1985 Mar 9;290(6470):740-2. doi: 10.1136/bmj.290.6470.740.Br Med J (Clin Res Ed). 1985.PMID: 3918735Free PMC article.