Letter: The glue-ear syndrome.
D002233:Carbocysteine / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003545:Cysteine / Q000031:analogs & derivatives*; D006801:Humans; D010033:Otitis Media / Q000188:drug therapy*
D002233:Carbocysteine; D003545:Cysteine