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O'Doherty DP, Neoptolemos JP, Bouch DC, Wood KF.O'Doherty DP, et al.Postgrad Med J. 1987 Apr;63(738):281-6. doi: 10.1136/pgmj.63.738.281.Postgrad Med J. 1987.PMID: 3684836Free PMC article.