title: Comparative study: ampicillin and cephalexin in otitis media.
mesh_terms: D000667:Ampicillin / Q000627:therapeutic use*; D002506:Cephalexin / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D006192:Haemophilus Infections / Q000188:drug therapy; D006801:Humans; D010033:Otitis Media / Q000188:drug therapy* / Q000209:etiology
chemical_list: D000667:Ampicillin; D002506:Cephalexin