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3161 Studies found for: subjects AND Double-blind AND tablet

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Click on the map below to show a more detailed map (when available) or search for studies (when map not available).

Map Legend
Region Name Number of Studies
World 3,161
Africa [map] 200
Central America [map] 161
East Asia [map] 665
Japan 230 [studies]
Europe [map] 1,141
Middle East [map] 262
North America 1,786
Canada [map] 566 [studies]
Mexico 259 [studies]
United States [map] 1,700 [studies]
North Asia [map] 400
Pacifica [map] 368
South America [map] 331
South Asia [map] 138
Southeast Asia [map] 199

Click on a [map] link to show a map of that region.

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

Studies with no locations are not included in the counts or on the map.

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