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Overall survival time according to patients with PROSAH model. Kaplan-Meier curves for overall survival according to patients with PROSASH model. The red line indicates Risk group 1. The green line indicates Risk group 2. The blue line indicates Risk group 3. The orange line indicates Risk group 4. Abbreviation: PROSAH; Prediction Of Survival in Advanced Sorafenib-treated Hepatocellular carcinoma.
