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3719 Studies found for: subjects AND Double-blind AND Texas AND Placebo

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Map Legend
Region Name Number of Studies
World 3,719
Africa [map] 345
Central America [map] 347
East Asia [map] 658
Japan 305 [studies]
Europe [map] 1,512
Middle East [map] 490
North America 3,708
Canada [map] 1,244 [studies]
Mexico 466 [studies]
United States [map] 3,705 [studies]
North Asia [map] 688
Pacifica [map] 712
South America [map] 589
South Asia [map] 218
Southeast Asia [map] 274

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