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Five-year survival results for patients assigned to receive standard radiation with concurrent chemotherapy compared with patients assigned to receive sequential chemotherapy and radiotherapy. Hazard ratio for death = 0.812, 95% confidence interval = 0.663 to 0.996, P = .046, two-sided log-rank test. Total dead at any time: Arm 1 = 189 and Arm 2 = 185. Slash marks indicate censored observations.
