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Subjects
- Unemployment -- statistics & numerical data1
- United States76
- United States -- epidemiology2
- United States -- ethnology1
- United States.11
- United States. Adjutant-General's Office. Colored Troops Division.1
- United States. Army3
- United States. Army.12
- United States. Bureau of Refugees, Freedmen, and Abandoned Lands1
- United States. Children's Bureau.1
- United States. Department of Health and Human Services.1
- United States. Presidential Commission on the Human Immunodeficiency Virus Epidemic1
- United States. Public Health Service.7
- Urban Health1
- Urban Population2
- Uterine Cervical Neoplasms1
- Uterine Cervical Neoplasms -- complications1