ACE and coronary artery disorder: Improvements in surgical procedures, advances in the quality of postoperative care, early detection of coronary artery disease, and optimal combinations of CABG and medication (e.g., antiplatelet/anticoagulant, beta-blocker, angiotensin converting enzyme inhibitor or angiotensin receptor blocker, and statin) might have attenuated prognostic differences between males and females [15].