Long term atropine in chronic severe childhood asthma.
D000284:Administration, Oral; D000293:Adolescent; D000336:Aerosols; D001249:Asthma / Q000188:drug therapy*; D001285:Atropine / Q000008:administration & dosage*; D002648:Child; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D010919:Placebos; D012107:Research Design; D013997:Time Factors
D000336:Aerosols; D010919:Placebos; D001285:Atropine