title: [Tracing of arrhythmia in active rheumatic fever by means of magnetic tape recordings].
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000209:etiology; D004562:Electrocardiography / Q000295:instrumentation*; D055590:Electromagnetic Phenomena; D005260:Female; D006801:Humans; D008297:Male; D012213:Rheumatic Fever / Q000150:complications* / Q000175:diagnosis; D013637:Tape Recording
vernacular_title: Sledzenie zaburzeń rytmu serca w czasie aktywnej choroby reumatycznej metoda magnetycznego zapisu