Three phases of prevention in the United States.
D001318:Authoritarianism; D003256:Community Participation; D004782:Environmental Health; D005102:Health Expenditures; D049672:History, 19th Century; D049673:History, 20th Century; D013677:Medical Laboratory Science / Q000266:history; D011315:Preventive Medicine / Q000266:history*; D011634:Public Health / Q000266:history; D012499:Sanitation; D012945:Social Values; D014481:United States