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Subjects
- Air Pollutants -- poisoning1
- Chemical Warfare2
- Chemical Warfare Agents3
- Chemical Warfare Agents -- toxicity1
- Chlorine -- poisoning1
- Civil Defense2
- Decontamination2
- First Aid1
- Gas Poisoning[remove]8
- Gases -- adverse effects1
- Gases -- toxicity1
- Irritants1
- Mustard Gas1
- Occupational Diseases1
- Ohio1
- Sanitation1
- Sewage -- adverse effects1
- United States2
- World War I1
- World War II2