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15828 Studies found for: subjects AND Double-blind

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Map Legend
Region Name Number of Studies
World [map] 15,828
South America 1,059
Argentina 591 [studies]
Bolivia 1 [studies]
Brazil 562 [studies]
Chile 357 [studies]
Colombia 258 [studies]
Ecuador 8 [studies]
Paraguay 1 [studies]
Peru 224 [studies]
Uruguay 3 [studies]
Venezuela 13 [studies]

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