Chronic bronchitis. Controlled trial of isoprenaline and chymotrypsin by inhalation.
D001991:Bronchitis / Q000628:therapy*; D029481:Bronchitis, Chronic; D002918:Chymotrypsin / Q000628:therapy*; D006403:Hematologic Tests; D007545:Isoproterenol; D013566:Sympathomimetics / Q000628:therapy*
D013566:Sympathomimetics; D002918:Chymotrypsin; D007545:Isoproterenol
BRONCHITIS/therapy; CHYMOTRYPSINS/therapy; SYMPATHOMIMETICS/therapy