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Dowsett M, MacNeill F, Mehta A, Newton C, Haynes B, Jones A, Jarman M, Lonning P, Powles TJ, Coombes RC.Dowsett M, et al. Among authors: coombes rc.Br J Cancer. 1991 Nov;64(5):887-94. doi: 10.1038/bjc.1991.420.Br J Cancer. 1991.PMID: 1931611Free PMC article.Clinical Trial.