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Subjects
- United States439
- United States. Department of Health and Human Services.[remove]439
- United States. Food and Drug Administration.303
- Humans294
- United States.49
- Clinical Trials as Topic47
- Drug Approval43
- State Government40
- Federal Government34
- Centers for Medicare & Medicaid Services (U.S.)33
- Device Approval33
- Research Design30
- Investigational New Drug Application26
- COVID-1923
- Device Approval -- standards23
- Fraud -- prevention & control22
- Insurance, Health, Reimbursement22
- Child21
- Equipment Safety21
- International Cooperation21