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Crane MM, Keating MJ.Crane MM, et al. Among authors: keating mj.Cancer. 1991 Apr 15;67(8):2211-4. doi: 10.1002/1097-0142(19910415)67:8<2211::aid-cncr2820670835>3.0.co;2-4.Cancer. 1991.PMID: 2004342