Six minute walk tests act as a predictor of mortality in patients with moderate COPD (patients who desaturate have worse mortality compared with those who don't desaturate.)
Chronic obstructive pulmonary disease other diagnostic studies
Chronic bronchitis echocardiography or ultrasound
Acute bronchitis risk factors
Chronic bronchitis laboratory findings
Chronic bronchitis risk factors
Occupational lung disease other diagnostic studies
Chronic bronchitis differential diagnosis
Asthma differential diagnosis