Sodium cromoglycate in chronic allergic rhinitis.
D002908:Chronic Disease; D002986:Clinical Trials as Topic; D004205:Cromolyn Sodium / Q000008:administration & dosage / Q000627:therapeutic use*; D004341:Drug Evaluation; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D004205:Cromolyn Sodium