Dependency on foreign countries 17 Substance dependence 15 Economic conditions 9 Drug abuse 7 Congresses 5 Dependency 5 Dependency (Psychology) 5 History 5 Social conditions 5 Capitalism 4 Foreign economic relations 4 Military dependents 4 Substance abuse 4 Treatment 4 Alcoholism 3 Economic policy 3 Politics and government 3 Rehabilitation 3 Commerce 2 Dependency on the United States 2 Drug dependence 2 Drug therapy 2 Drugs 2 Investments, Foreign 2 Narcotic addicts 2 Narcotic habit 2 Periodicals 2 Psychological aspects 2 Scholarships 2 Substance use 2