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Cotton PB, Shorvon PJ, Lees WR.Cotton PB, et al.Br Med J (Clin Res Ed). 1985 May 11;290(6479):1373-4. doi: 10.1136/bmj.290.6479.1373.Br Med J (Clin Res Ed). 1985.PMID: 3922499Free PMC article.No abstract available.