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22079 Studies found for: Ohio

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Map Legend
Region Name Number of Studies
World 22,079
Africa [map] 1,163
Central America [map] 1,590
East Asia [map] 2,396
Japan 1,219 [studies]
Europe [map] 5,880
Middle East [map] 1,973
North America 21,916
Canada [map] 5,356 [studies]
Mexico 1,367 [studies]
United States [map] 21,912 [studies]
North Asia [map] 2,143
Pacifica [map] 2,806
South America [map] 2,149
South Asia [map] 742
Southeast Asia [map] 1,035

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Studies with multiple locations are included in each region containing locations.