title: Airway hyperreactivity in COPD. Cause or effect, an in vivo in vitro comparison.
mesh_terms: D001980:Bronchi / Q000503:physiopathology*; D003251:Constriction, Pathologic / Q000209:etiology; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000209:etiology / Q000503:physiopathology*; D009130:Muscle, Smooth / Q000503:physiopathology*; D012907:Smoking; D014939:Work of Breathing