title: THE CORRECTED ORTHOGONAL ELECTROCARDIOGRAM AND VECTORCARDIOGRAM IN 510 NORMAL MEN (FRANK LEAD SYSTEM).
mesh_terms: D000375:Aging; D003201:Computers; D004562:Electrocardiography; D001330:Electronic Data Processing; D005853:Geriatrics; D006801:Humans; D008297:Male; D012723:Sex; D013223:Statistics as Topic; D014672:Vectorcardiography
keywords: AGING; AUTOMATIC DATA PROCESSING; COMPUTERS, DIGITAL; ELECTROCARDIOGRAPHY; GERIATRICS; SEX; STATISTICS; VECTORCARDIOGRAPHY