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Sewell WA, Marshall SE, Mullighan CG, Bird AG.Sewell WA, et al. Among authors: mullighan cg.Postgrad Med J. 1998 Aug;74(874):503-4. doi: 10.1136/pgmj.74.874.503.Postgrad Med J. 1998.PMID: 9926133Free PMC article.No abstract available.