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Kaplan–Meier estimation of survival in patients with or without hyperbilirubinemia. Kaplan–Meier cumulative survival curves showing cumulative rates of survival for 77 inoperable chronic thromboembolic pulmonary hypertension patients, stratified by the identified total bilirubin cut-off value. Survival in patients with a total bilirubin ≥23.7 μmol/L differed significantly from that in patients with a total bilirubin <23.7 μmol/L.
