Health surveillance: preventing occupational asthma.
D000395:Air Pollutants, Occupational; D001249:Asthma / Q000517:prevention & control*; D006266:Health Education; D006801:Humans; D016272:Occupational Health; D011009:Pneumoconiosis / Q000517:prevention & control*; D012130:Respiratory Hypersensitivity / Q000517:prevention & control
D000395:Air Pollutants, Occupational