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14572 Studies found for: subjects AND Double-blind AND Phase

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Map Legend
Region Name Number of Studies
World 14,572
Africa [map] 636
Central America [map] 462
East Asia [map] 2,361
Japan 794 [studies]
Europe [map] 4,771
Middle East [map] 894
North America 8,352
Canada [map] 2,048 [studies]
Mexico 701 [studies]
United States [map] 7,886 [studies]
North Asia [map] 1,257
Pacifica [map] 1,301
South America [map] 1,030
South Asia [map] 419
Southeast Asia [map] 606

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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.