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Covariate plot for overall survival versus time from diagnosis to fallout, in months. Univariate analysis showed time from diagnosis to fallout correlated with overall survival (P=0.04) but not tissue diagnosis, cancer antigen 19-9 level, external-beam radiation therapy or brachytherapy dose, age, blood type, ulcerative colitis or primary sclerosing cholangitis status, or type of fallout (prestaging or staging).
