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Subjects
- Salmonella1
- Scotland1
- Self-Assessment1
- September 11 Terrorist Attacks1
- Sex Workers1
- Shigella1
- Small-Area Analysis1
- Social Security1
- Social Security -- statistics & numerical data2
- Social Security -- utilization1
- Social Welfare1
- Socioeconomic Factors1
- State Children's Health Insurance Program (U.S.)2
- State Government3
- State Health Plans -- economics1