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14042 Studies found for: indicates

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Map Legend
Region Name Number of Studies
World 14,042
Africa [map] 477
Central America [map] 243
East Asia [map] 1,833
Japan 510 [studies]
Europe [map] 4,075
Middle East [map] 1,308
North America 7,013
Canada [map] 1,462 [studies]
Mexico 387 [studies]
United States [map] 6,388 [studies]
North Asia [map] 706
Pacifica [map] 685
South America [map] 762
South Asia [map] 363
Southeast Asia [map] 458

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Studies with no locations are not included in the counts or on the map.

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