[Chronic bronchitis and emphysema in workers of state farms].
D001699:Biometry; D001991:Bronchitis / Q000706:statistics & numerical data*; D029481:Bronchitis, Chronic; D004646:Emphysema; D006801:Humans; D011656:Pulmonary Emphysema / Q000706:statistics & numerical data*
BRONCHITIS/statistics; EMPHYSEMA, PULMONARY/statistics
Chronická bronchitis a emfysém u zamestnanců státních statků.