The lung health study. Disappointment and triumph.
Gross
N J
NJ
D001993:Bronchodilator Agents / Q000627:therapeutic use*; D006801:Humans; D009241:Ipratropium / Q000627:therapeutic use; D008173:Lung Diseases, Obstructive / Q000503:physiopathology / Q000517:prevention & control*; D016540:Smoking Cessation
D001993:Bronchodilator Agents; D009241:Ipratropium