THE DOCTOR'S ROLE IN AIR POLLUTION CONTROL.
D000397:Air Pollution; D000485:Allergens; D006801:Humans; D007306:Insecticides; D011058:Pollen; D001335:Vehicle Emissions
D000485:Allergens; D007306:Insecticides; D001335:Vehicle Emissions
AIR POLLUTION; AUTOMOBILE EXHAUST; INSECTICIDES; POLLEN