RESPIRATORY SYMPTOMS AND SMOKING HABITS OF SENIOR INDUSTRIAL STAFF.
D001826:Body Fluids; D001991:Bronchitis; D003371:Cough; D006184:Habits; D006801:Humans; D007221:Industry; D009787:Occupational Medicine; D009790:Occupations; D012140:Respiratory Tract Diseases; D012907:Smoking; D012961:Sociology
BODY FLUIDS; BRONCHITIS; COUGH; INDUSTRIAL MEDICINE; OCCUPATIONS; RESPIRATORY TRACT DISEASES; SMOKING; SOCIOLOGY