Streptococcal pharyngitis in children. Difficulties in diagnosis on clinical grounds alone.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D010612:Pharyngitis / Q000209:etiology*; D013290:Streptococcal Infections / Q000382:microbiology; D013291:Streptococcus / Q000302:isolation & purification