Bronchodilators in chronic bronchitis.
D001991:Bronchitis / Q000628:therapy*; D029481:Bronchitis, Chronic; D001993:Bronchodilator Agents; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D013566:Sympathomimetics / Q000627:therapeutic use*
D001993:Bronchodilator Agents; D006634:Histamine H1 Antagonists; D013566:Sympathomimetics
ANTIHISTAMINICS/therapeutic use; BRONCHITIS/therapy; SYMPATHOMIMETICS/therapeutic use