title: Evaluation of the role of laboratory investigation in studying the epidemiology of streptococcal infection in semiurban primary school children in Cairo.
mesh_terms: D002648:Child; D019411:Clinical Laboratory Techniques; D004534:Egypt; D005069:Evaluation Studies as Topic; D006801:Humans; D012574:Schools; D013290:Streptococcal Infections / Q000175:diagnosis / Q000453:epidemiology*; D014505:Urban Population