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Ability of the chemotherapy toxicity risk score (CTRS) to predict chemotherapy toxicity. (A): Three CTRS categories, low (0 to 5 points), medium (6 to 9 points), or high risk (10 to 19 points), versus toxicity risk. (B): Two CTRS categories, low and medium risk combined (0 to 9 points) or high risk (10 to 19 points), versus toxicity risk.
