title: Incidence of rheumatic fever. Summary of an eight year study of incoming freshmen at the University of North Dakota.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D012213:Rheumatic Fever / Q000453:epidemiology*; D012214:Rheumatic Heart Disease / Q000453:epidemiology*