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(A) Cumulative OS rates in patients with Japan Integrated Staging (JIS) score of 0, 1 or 2 (n=927: 55 patients in group A, 390 in group B and 482 in group C). The difference in the three groups did not reach significance in terms of OS (P=0.308). (B) Cumulative OS rates in patients with Japan Integrated Staging (JIS) score of 3, 4 or 5 (n=243: 41 patients in group A, 130 in group B and 72 in group C). Significant difference was found in the three groups in terms of OS (P=0.001).
