title: THE NATURAL HISTORY OF EMPHYSEMA.
mesh_terms: D000293:Adolescent; D001249:Asthma; D044383:Black People; D001991:Bronchitis; D002100:Cachexia; D004417:Dyspnea; D004646:Emphysema; D005853:Geriatrics; D006801:Humans; D011379:Prognosis; D011656:Pulmonary Emphysema; D011660:Pulmonary Heart Disease; D012129:Respiratory Function Tests; D012907:Smoking; D013223:Statistics as Topic
keywords: ADOLESCENCE; ASTHMA; BRONCHITIS; CACHEXIA; DYSPNEA; GERIATRICS; NEGROES; PROGNOSIS; PULMONARY EMPHYSEMA; PULMONARY HEART DISEASE; RESPIRATORY FUNCTION TESTS; SMOKING; STATISTICS