THE RELATIONSHIP OF T AND ST WAVE CHANGES IN THE PRECORDIAL LEADS.
D000293:Adolescent; D000375:Aging; D000787:Angina Pectoris; D001145:Arrhythmias, Cardiac; D044383:Black People; D002648:Child; D004562:Electrocardiography; D005853:Geriatrics; D006331:Heart Diseases; D006801:Humans; D006973:Hypertension; D007223:Infant
ADOLESCENCE; AGING; ANGINA PECTORIS; ARRHYTHMIA; CHILD; ELECTROCARDIOGRAPHY; GERIATRICS; HEART DISEASES; HYPERTENSION; INFANT; NEGROES