The apex cardiogram in the study of the 2-OS interval.
D004562:Electrocardiography; D006801:Humans; D007702:Kinetocardiography; D008944:Mitral Valve Insufficiency; D008946:Mitral Valve Stenosis; D010701:Phonocardiography
ELECTROCARDIOGRAPHY; MITRAL INSUFFICIENCY; MITRAL STENOSIS; PHONOCARDIOGRAPHY