title: Treatment of undifferentiated respiratory infections in infants.
mesh_terms: D002986:Clinical Trials as Topic; D004342:Drug Hypersensitivity; D005334:Fever / Q000188:drug therapy; D006801:Humans; D007223:Infant; D010404:Penicillin V / Q000627:therapeutic use*; D012141:Respiratory Tract Infections / Q000097:blood / Q000150:complications / Q000188:drug therapy* / Q000382:microbiology; D013752:Tetracycline / Q000627:therapeutic use*
chemical_list: D013752:Tetracycline; D010404:Penicillin V