[CHRONIC BRONCHITIS AND PULMONARY EMPHYSEMA IN COAL MINERS].
D001991:Bronchitis; D029481:Bronchitis, Chronic; D003031:Coal; D003032:Coal Mining; D003604:Czechoslovakia; D006801:Humans; D009784:Occupational Diseases; D011656:Pulmonary Emphysema
D003031:Coal
BRONCHITIS; COAL MINING; CZECHOSLOVAKIA; OCCUPATIONAL DISEASES; PULMONARY EMPHYSEMA
CHRONICK'A BRONCHITIS A ROZEDEMA PLIC U UHLOKOPU.