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Subjects
- United States Government Agencies[remove]41
- United States35
- American Civil War10
- United States Sanitary Commission.8
- Military Hygiene7
- Military Medicine6
- General Surgery5
- Libraries, Medical5
- Military Personnel5
- National Library of Medicine (U.S.)5
- United States Government Agencies -- organization & administration4
- Laboratories3
- United States. Public Health Service.3
- Academies and Institutes2
- Adaptation, Physiological2
- Ergonomics2
- Library Services2
- Occupational Exposure2
- Public Health2
- Temperature2