Chronic bronchitis: a neglected disease entity.
D001991:Bronchitis / Q000150:complications*; D029481:Bronchitis, Chronic; D004646:Emphysema; D006801:Humans; D058069:Neglected Diseases; D011656:Pulmonary Emphysema / Q000150:complications*
BRONCHITIS/complications; EMPHYSEMA, PULMONARY/complications