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Subjects
- Adaptation, Physiological1
- Armored Medical Research Laboratory (U.S.)1
- Cold Temperature1
- Distance Perception1
- Ergonomics1
- Firearms1
- Gloves, Protective1
- Laboratories1
- Military Personnel2
- Military Science13
- Motor Vehicles14
- Night Vision1
- Occupational Exposure1
- Optical Devices7
- Telecommunications1
- Telescopes2
- Temperature1
- United States15
- United States Government Agencies1
- Vision, Ocular3
