title: Failure of pivampicillin in treating chlamydial infections.
mesh_terms: D000667:Ampicillin / Q000031:analogs & derivatives*; D002690:Chlamydia Infections / Q000188:drug therapy*; D002692:Chlamydia trachomatis; D006801:Humans; D010917:Pivampicillin / Q000627:therapeutic use*; D014526:Urethritis / Q000188:drug therapy*
chemical_list: D010917:Pivampicillin; D000667:Ampicillin