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Subjects
- United States179
- World War I140
- France50
- Military Medicine47
- Hospitals, Military43
- Military Personnel43
- Hygiene40
- New York29
- Nonprescription Drugs28
- Pennsylvania28
- Sex Education28
- Child25
- Tuberculosis, Pulmonary25
- Physicians24
- Military Hygiene23
- American National Red Cross.22
- New York City22
- Relief Work22
- Tuberculosis, Pulmonary -- prevention & control22
- United States. Army. Medical Department.22