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Larsen E, Perez-Atayde A, Green DM, Retik A, Clavell LA, Sallan SE.Larsen E, et al.Cancer. 1990 Jul 15;66(2):264-6. doi: 10.1002/1097-0142(19900715)66:2<264::aid-cncr2820660212>3.0.co;2-z.Cancer. 1990.PMID: 2164436