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Brown BW, Atkinson EN, Thompson JR, Montague ED.Brown BW, et al. Among authors: montague ed.J Natl Cancer Inst. 1987 Mar;78(3):425-35.J Natl Cancer Inst. 1987.PMID: 3469456
Atkinson EN, Brown BW, Montague ED.Atkinson EN, et al. Among authors: montague ed.J Natl Cancer Inst. 1986 Feb;76(2):171-8.J Natl Cancer Inst. 1986.PMID: 3456058