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Hot Temperature
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43
United States
16
World War II
14
Military Personnel
12
Adaptation, Physiological
11
Motor Vehicles
6
Infant Care
5
Acclimatization
3
Desert Climate
3
Drinking Water
3
Light
3
Philadelphia
3
Sodium Chloride, Dietary
3
Ambulances
2
Climate
2
Electricity
2
Hygiene
2
Infant Food
2
Seasons
2
Adolescent
1