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Stewart FM, Harkins BJ, Hahn SS, Daniel TM.Stewart FM, et al. Among authors: harkins bj.Cancer. 1989 Aug 1;64(3):622-8. doi: 10.1002/1097-0142(19890801)64:3<622::aid-cncr2820640310>3.0.co;2-8.Cancer. 1989.PMID: 2501018