Law and legislation 55 History 50 Politics and government 41 Research 34 Government policy 28 POLITICAL SCIENCE 28 Health insurance 27 Budget 25 Medical care 23 Finance 21 Political parties 21 Appropriations and expenditures 20 Costs 20 Environmental aspects 20 Prevention 18 Medical care, Cost of 17 Medicare 17 Officials and employees 17 General 16 Taxation 16 Armed Forces 15 African Americans 14 Educational technology 14 Information services 14 Legislation 14 Medical fees 14 Cost control 12 Elections 12 Foreign relations 12 Government 12