Cardiac irregularities in a Negro general hospital.
D001145:Arrhythmias, Cardiac; D044383:Black People; D053840:Brugada Syndrome; D000075224:Cardiac Conduction System Disease; D004194:Disease; D006329:Heart Conduction System; D006331:Heart Diseases / Q000706:statistics & numerical data*; D006769:Hospitals, General; D006801:Humans
HEART DISEASES/statistics; NEGROES/diseases