Computerized measurement of the first derivative of the QRS complex: theoretical and practical considerations.
D000703:Analog-Digital Conversion; D003201:Computers; D004562:Electrocardiography / Q000295:instrumentation* / Q000379:methods; D006321:Heart / Q000503:physiopathology; D006801:Humans; D008838:Microcomputers; D008954:Models, Biological; D009203:Myocardial Infarction / Q000503:physiopathology