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4166 Studies found for: subjects AND Double-blind AND Texas

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Map Legend
Region Name Number of Studies
World 4,166
Africa [map] 391
Central America [map] 404
East Asia [map] 717
Japan 329 [studies]
Europe [map] 1,666
Middle East [map] 534
North America 4,153
Canada [map] 1,373 [studies]
Mexico 526 [studies]
United States [map] 4,150 [studies]
North Asia [map] 762
Pacifica [map] 788
South America [map] 678
South Asia [map] 245
Southeast Asia [map] 314

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