Teaching selective attention to the cardiac cycle: the Cardio-gater.
D001296:Audiovisual Aids; D002309:Cardiology / Q000193:education*; D004501:Education, Medical; D004562:Electrocardiography; D004582:Electronics, Medical; D006321:Heart / Q000502:physiology / Q000503:physiopathology; D006326:Heart Auscultation / Q000295:instrumentation*; D006801:Humans; D010701:Phonocardiography; D013663:Teaching