title: Persistence of the juvenile pattern in the precordial leads of healthy adult Negroes, with report of electrocardiographic survey on three hundred Negro and two hundred white subjects.
authors.forename: D
authors.initials: D
authors.lastname: LITTMANN
mesh_terms: D000293:Adolescent; D000328:Adult; D044383:Black People; D003625:Data Collection; D004562:Electrocardiography; D006321:Heart; D006801:Humans