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Subjects
Civil defense
6
Gas mask
3
Protective clothing
3
Decontamination of personal clothing
2
Decontamination station
2
Personal antichemical-protection gear
2
Antichemical-protection service
1
Biological warfare
1
Biological weapon
1
Chemical attack
1
Chemical decontamination
1
Civil defense command
1
Decontamination
1
Decontamination of persons
1
Decontamination of technical equipment
1
Engineering rescue services
1
Epidemic
1
Improvised field hospitals
1
Medical aid station
1
Medical attention
1