[Duration of the QRS complex and Q wave in orthogonal leads].
D004562:Electrocardiography; D006321:Heart / Q000502:physiology / Q000503:physiopathology; D006801:Humans; D009203:Myocardial Infarction / Q000503:physiopathology
O prodolzhitel'nosti kompleksa QRS i zubtsa Q v ortogonal'nykh otvedeniiakh