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Figure 3 Time sequence changes of plasma nitrogen metabolites (A), lipid peroxides (B), cortisol (C), tumor necrosis factor (TNF)- (D) and interleukin-6 (E) concentrations. *p < 0.01 compared among different time points; p < 0.01 compared between two congestive heart failure (CHF) groups. A significant (p < 0.01) interaction exists between time variable and group variable in (E).