Q wave disappearance after coronary bypass surgery.
D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology; D014672:Vectorcardiography