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Subjects
- 18th General Hospital (Baltimore, Md.)1
- 24th Evacuation Hospital.1
- 78th General Hospital.1
- Accident Prevention3
- Accident Prevention -- statistics & numerical data1
- Accidents, Aviation -- statistics & numerical data1
- Acclimatization3
- Adaptation, Physiological13
- Advertising1
- Aerospace Medicine9
- Aerospace medicine1
- Age Factors1
- Air Ambulances1
- Air Conditioning2
- Air Pollutants, Occupational13
- Air Pressure1
- Aircraft3
- Allied Health Personnel1
- Allied Health Personnel -- education1
- Ambulances3