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Author/Creator
- Centers for Disease Control and Prevention (U.S.)69
- Centers for Disease Control (U.S.)18
- National Institute of Justice (U.S.)8
- Center for Disease Control7
- National Institute on Drug Abuse7
- National Institute on Drug Abuse. Community Epidemiology Work Group7
- United States. Substance Abuse and Mental Health Services Administration. Office of Applied Studies6
- World Health Organization6
- International Epidemiological Association5
- National Communicable Disease Center (U.S.)5
- University of Michigan. Institute for Social Research5
- National Center for Health Statistics (U.S.)4
- National Institute on Drug Abuse. Division of Epidemiology and Prevention Research4
- United States. Agricultural Research Service4
- BioMed Central Ltd3
- British Medical Association3
- Canada. Health Canada3
- Center for Disease Control. Vector-Borne Diseases Division3
- Centers for Disease Control (U.S.). Epidemiology Program Office3
- Geological Survey (U.S.)3