[CLINICAL PICTURE OF CHRONIC BRONCHITIS AND INDUSTRIAL HYGIENE].
D001991:Bronchitis; D029481:Bronchitis, Chronic; D006801:Humans; D006814:Hungary; D009784:Occupational Diseases; D016272:Occupational Health
BRONCHITIS; HUNGARY; OCCUPATIONAL DISEASES
AZ IDUELT BRONCHITIS K'ORK'EP'ENEK MUNKAHYGI'EN'ES VONATKOZ'ASAI.