A controlled trial of dexamethasone snuff in chronic perennial rhinitis.
D000293:Adolescent; D000328:Adult; D002214:Capsules; D002986:Clinical Trials as Topic; D003907:Dexamethasone / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D010919:Placebos; D011208:Powders; D012220:Rhinitis / Q000188:drug therapy*; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D002214:Capsules; D010919:Placebos; D011208:Powders; D003907:Dexamethasone; D006854:Hydrocortisone