title: CHRONIC OBSTRUCTIVE BRONCHOPULMONARY DISEASE. III. FACTORS INFLUENCING PROGNOSIS.
mesh_terms: D001249:Asthma; D001982:Bronchial Diseases; D001986:Bronchial Spasm; D004562:Electrocardiography; D005080:Exercise Test; D006333:Heart Failure; D006400:Hematocrit; D006801:Humans; D006973:Hypertension; D006976:Hypertension, Pulmonary; D005082:Physical Exertion; D011086:Polycythemia; D011379:Prognosis; D011656:Pulmonary Emphysema; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency; D012907:Smoking
keywords: ASTHMA; BRONCHIAL DISEASES; BRONCHIAL SPASM; ELECTROCARDIOGRAPHY; EXERCISE TEST; EXERTION; HEART FAILURE, CONGESTIVE; HEMATOCRIT; HYPERTENSION, PULMONARY; POLYCYTHEMIA; PULMONARY EMPHYSEMA; RESPIRATORY FUNCTION TESTS; RESPIRATORY INSUFFICIENCY; SMOKING