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15799 Studies found for: subjects AND Double-blind

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Map Legend
Region Name Number of Studies
World [map] 15,799
Central America 466
Bahamas 2 [studies]
Belize 11 [studies]
Costa Rica 37 [studies]
Cuba 5 [studies]
Dominican Republic 31 [studies]
El Salvador 4 [studies]
Guatemala 61 [studies]
Haiti 1 [studies]
Honduras 9 [studies]
Jamaica 4 [studies]
Panama 24 [studies]
Puerto Rico 347 [studies]

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