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Subjects
- Caldwell, John Mars, 1904-1
- Canada2
- Carbon Monoxide1
- Carbon Monoxide Poisoning1
- Carbon Monoxide Poisoning -- prevention & control2
- Chemical Warfare -- prevention & control1
- Chemical Warfare Agents1
- Climate2
- Climatic Research Laboratory (United States. Army Service Forces)1
- Clinical Coding2
- Clinical Trials as Topic1
- Clothing12
- Clothing -- standards2
- Cold Climate3
- Cold Temperature9
- Communicable Disease Control -- methods1
- Conference of Special Medical Consultants13
- Conference on Problems of Mountain Physiology3
- Contraception1
- Convalescence2