Picrorrhiza kurroa in bronchial asthma.
D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000628:therapy*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged; D010946:Plants, Medicinal; D011897:Random Allocation