Research in the nation's hospitals: state-local-voluntary, 1967.
D004469:Economics, Hospital; D005380:Financing, Government; D005843:Geography; D006761:Hospitals; D006769:Hospitals, General; D006782:Hospitals, Special; D006784:Hospitals, Teaching; D010067:Ownership; D012106:Research; D012108:Research Personnel; D013223:Statistics as Topic; D014481:United States