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Subjects
- Sanitation25
- General Surgery24
- Military Medicine -- education24
- American National Red Cross.23
- Civil Defense23
- Health Workforce23
- United States. Army23
- Equipment and Supplies22
- Weapons22
- Red Cross21
- United States. Army. American Expeditionary Forces21
- Combat Disorders20
- Persons with Disabilities -- rehabilitation20
- Orthopedics19
- Adaptation, Physiological18
- Protective Clothing18
- Ventilation18
- San Francisco17
- United States Government Agencies17
- Europe16