[Long-term electrocardiographic recorder and its performance].
D000203:Activities of Daily Living; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D003327:Coronary Disease / Q000175:diagnosis; D004562:Electrocardiography / Q000295:instrumentation*; D006801:Humans; D013637:Tape Recording / Q000295:instrumentation; D013997:Time Factors