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. 2003 Nov 25;89(11):2045–2050. doi: 10.1038/sj.bjc.6601364

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Copyright © 2003 Cancer Research UK

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Kaplan–Meier survival curves for patients with 0–3 risk factors (A=no risk factor, B=one risk factor, C=two risk factors, D=three risk factors). The risk factors are WHO 2, extensive disseminated disease and elevated LDH.