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Oxidative stress markers: glutathione/disulphide glutathione ratio (A) and 8-iso-prostaglandin F2α (B) adjusted means and 95% CI. On the left side: controls and surgical patients (***P < 0.001, Model 3); on the right side: patients grouped by cardiac surgical procedures (##P < 0.01, Model 3, coronary artery bypass surgery or Aortic vs Mitral).
