title: Letter: Co-trimoxazole and cephalexin in urinary tract infection.
mesh_terms: D002506:Cephalexin / Q000627:therapeutic use*; D006801:Humans; D014295:Trimethoprim / Q000627:therapeutic use*; D014552:Urinary Tract Infections / Q000188:drug therapy
chemical_list: D014295:Trimethoprim; D002506:Cephalexin