title: Factors involved in treatment failures following oral penicillin therapy of streptococcal pharyngitis.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001431:Bacteriological Techniques; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000150:complications; D008297:Male; D009254:Nafcillin / Q000008:administration & dosage*; D010404:Penicillin V / Q000008:administration & dosage*; D010612:Pharyngitis / Q000188:drug therapy* / Q000209:etiology / Q000382:microbiology; D012703:Serotyping; D012737:Sex Factors; D013290:Streptococcal Infections / Q000188:drug therapy* / Q000209:etiology; D013291:Streptococcus / Q000302:isolation & purification
chemical_list: D009254:Nafcillin; D010404:Penicillin V