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Subjects
- United States178
- World War I140
- France50
- Military Medicine47
- Hospitals, Military43
- Military Personnel43
- Hygiene40
- Nonprescription Drugs33
- New York31
- Pennsylvania28
- Sex Education28
- Child25
- Tuberculosis, Pulmonary25
- Physicians24
- Military Hygiene23
- New York City23
- American National Red Cross.22
- General Surgery22
- Relief Work22
- Tuberculosis, Pulmonary -- prevention & control22