ECG Challenge Response: November 18, 2014.
D000368:Aged; D054537:Atrioventricular Block / Q000175:diagnosis / Q000503:physiopathology; D004562:Electrocardiography / Q000379:methods; D005260:Female; D006801:Humans; D017180:Tachycardia, Ventricular / Q000175:diagnosis* / Q000503:physiopathology*