title: The relative rheumatogenicity of strains of group A streptococci.
mesh_terms: D000208:Acute Disease; D002648:Child; D005060:Europe; D005921:Glomerulonephritis / Q000453:epidemiology; D006801:Humans; D009656:North America; D012213:Rheumatic Fever / Q000453:epidemiology* / Q000382:microbiology; D012621:Seasons; D013297:Streptococcus pyogenes / Q000472:pathogenicity*; D013997:Time Factors