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Subjects
- U.S. Nuclear Regulatory Commission.1
- Ultrasonic Surgical Procedures -- adverse effects1
- Ultrasonic Surgical Procedures -- instrumentation1
- Ultrasonic Surgical Procedures -- standards1
- Uncompensated Care3
- Uncompensated Care -- statistics & numerical data1
- Unemployment1
- Unemployment -- statistics & numerical data1
- United Kingdom1
- United States[remove]448
- United States Government Agencies1
- United States Virgin Islands1
- United States.81
- United States. Agency for Healthcare Research and Quality.1
- United States. Agency for International Development1
- United States. Animal and Plant Health Inspection Service.1
- United States. Department of Agriculture.5
- United States. Department of Defense.8
- United States. Department of Education.1
- United States. Department of Energy.1