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16206 Studies found for: subjects AND Double-blind

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Map Legend
Region Name Number of Studies
World 16,206
Africa [map] 649
Central America [map] 469
East Asia [map] 2,523
Japan 815 [studies]
Europe [map] 5,250
Middle East [map] 958
North America 9,002
Canada [map] 2,122 [studies]
Mexico 707 [studies]
United States [map] 8,476 [studies]
North Asia [map] 1,265
Pacifica [map] 1,311
South America [map] 1,085
South Asia [map] 449
Southeast Asia [map] 633

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.