title: Trial of 2 per cent of sodium cromoglycate (BP) in perennial rhinitis.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002986:Clinical Trials as Topic; D004205:Cromolyn Sodium / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012220:Rhinitis / Q000188:drug therapy*
chemical_list: D004205:Cromolyn Sodium