[The significance of age reactivity in the course of rheumatism in children].
D000375:Aging / Q000502:physiology*; D002648:Child; D006801:Humans; D007109:Immunity; D007223:Infant; D012216:Rheumatic Diseases; D012213:Rheumatic Fever / Q000502:physiology*
AGING/physiology; IMMUNITY/in infancy and childhood; RHEUMATIC FEVER/physiology