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Subjects
- United States175
- World War I138
- France48
- Military Medicine47
- Hospitals, Military42
- Military Personnel42
- Hygiene40
- Nonprescription Drugs33
- New York30
- Sex Education28
- Pennsylvania27
- Tuberculosis, Pulmonary25
- New York City23
- American National Red Cross.22
- General Surgery22
- Military Hygiene22
- Relief Work22
- United States. Army. Medical Department.22
- Orthopedics21
- Physicians21