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Cumulative mortalities according to the Child-Pugh class of (A) 448 patients with known sources of bleeding and (B) 372 patients with variceal bleeding. Thirty-one patients with bleeding from undefined sources were excluded in this analysis. The p values were obtained from the log-rank test. Child A, patients with Child-Pugh class A; Child B, patients with Child-Pugh class B; Child C, patients with Child-Pugh class C.
