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Subjects
- United States4
- Federal Government3
- Government Programs3
- Pregnancy in Adolescence -- prevention & control3
- Program Evaluation2
- Research Design2
- Colonic Neoplasms -- diagnosis1
- Colonoscopy -- adverse effects1
- Humans1
- Incidence1
- Intestinal Perforation -- epidemiology1
- Intestinal Perforation -- etiology1
- Risk Factors1