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Subcategories of "Social /Safety sytem science"

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Social /Safety sytem science BACK
Natural disaster/Disaster prevention science 0 0 0 0 0 0 0 0 0 0
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Events in Japan 0 0 0 0 0 0 0 0 0 0
Events in the World 0 0 0 0 0 0 0 0 0 0
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