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Twijnstra A, Thunnissen FB, Lassouw G, Volovics A, Ten Velde GP.Twijnstra A, et al.Cancer. 1990 Apr 15;65(8):1812-5. doi: 10.1002/1097-0142(19900415)65:8<1812::aid-cncr2820650824>3.0.co;2-#.Cancer. 1990.PMID: 2156606
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