Health care in the United States: who pays?
D000383:Agriculture; D004787:Environmental Pollution; D005380:Financing, Government; D005381:Financing, Organized; D005382:Financing, Personal; D005102:Health Expenditures; D006801:Humans; D007182:Income; D007183:Income Tax; D007348:Insurance, Health; D007391:International Cooperation; D009017:Morbidity; D009026:Mortality; D011203:Poverty; D012109:Research Support as Topic; D012943:Social Security; D014481:United States