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Subjects
- Research Design[remove]128
- United States46
- Humans35
- United States. Department of Health and Human Services.30
- United States. Food and Drug Administration.29
- Clinical Trials as Topic16
- Transformation, Genetic8
- Neurobiology6
- Clinical Trials as Topic -- standards5
- Pregnancy in Adolescence -- prevention & control5
- Safety5
- Transformation, Bacterial5
- Adult4
- Amino Acid Sequence4
- Child4
- Drug Approval4
- Drug Evaluation -- standards4
- Drug Evaluation, Preclinical4
- Drug Evaluation, Preclinical -- standards4
- Investigational New Drug Application4