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Byrne DJ, Napier A, Cuschieri A.Byrne DJ, et al.Br Med J (Clin Res Ed). 1988 Mar 19;296(6625):839-40. doi: 10.1136/bmj.296.6625.839.Br Med J (Clin Res Ed). 1988.PMID: 3130937Free PMC article.