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1178 Studies found for: Oklahoma AND Cancer | NIH
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Map Legend
Region Name Number of Studies
World 1,178
Africa [map] 44
Central America [map] 249
East Asia [map] 50
Japan 24 [studies]
Europe [map] 126
Middle East [map] 53
North America 1,178
Canada [map] 465 [studies]
Mexico 5 [studies]
United States [map] 1,178 [studies]
North Asia [map] 2
Pacifica [map] 201
South America [map] 27
South Asia [map] 5
Southeast Asia [map] 10

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