Environmental factors in the provocation of asthma and hay fever.
D001249:Asthma / Q000209:etiology*; D004342:Drug Hypersensitivity / Q000209:etiology; D004785:Environmental Pollutants / Q000009:adverse effects*; D005512:Food Hypersensitivity / Q000209:etiology; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000209:etiology*
D004785:Environmental Pollutants