title: Group A beta-hemolytic streptococci causing pyogenic gingival cyst in infancy.
mesh_terms: D003560:Cysts / Q000209:etiology*; D005260:Female; D005882:Gingival Diseases / Q000209:etiology*; D006801:Humans; D007223:Infant; D013290:Streptococcal Infections; D013297:Streptococcus pyogenes