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Kaplan-Meier survival curves comparing mice with mild PS (n = 5), moderate PS (n = 13), and severe PS (n = 16) after pulmonary artery (PA) constriction (PAC). Survival half-time was 19.6 days in severe PS vs. 50.8 days in moderate PS. None of the mice with mild PS died by 100 days, which was the end of our study. There was a significant difference between moderate PS and severe PS survival (P < 0.001 by log-rank analysis).
