THE ECONOMICS OF NATIONAL HEALTH.
D000056:Accident Prevention; D000397:Air Pollution; D004470:Economics, Medical; D005853:Geriatrics; D006281:Health Occupations; D006801:Humans; D007348:Insurance, Health; D011051:Poliomyelitis; D011634:Public Health; D014481:United States; D014876:Water Pollution
ACCIDENT PREVENTION; AIR POLLUTION; ECONOMICS, MEDICAL; GERIATRICS; HEALTH OCCUPATIONS; INSURANCE, HEALTH; POLIOMYELITIS; PUBLIC HEALTH; UNITED STATES; WATER POLLUTION