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Kaplan-Meier survival curves. Kaplan-Meier survival curves of patients after treatment with chemotherapy and recombinant adenovirus (rAD)-p53 (group I), rAD-p53 (group II), or chemotherapy (group III) are shown (A) for all patients, (B) patients with International Union Against Cancer (UICC) stage III carcinoma, and (C) patients with UICC stage IV carcinoma. The numbers under the curve are the numbers of patients at risk in each group at each specific follow-up point.
