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88508 Studies found for: control group | Interventional Studies
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Map Legend
Region Name Number of Studies
World 88,508
Africa [map] 3,514
Central America [map] 715
East Asia [map] 10,931
Japan 1,071 [studies]
Europe [map] 23,209
Middle East [map] 4,522
North America 35,964
Canada [map] 6,037 [studies]
Mexico 984 [studies]
United States [map] 31,263 [studies]
North Asia [map] 1,426
Pacifica [map] 1,706
South America [map] 3,484
South Asia [map] 1,915
Southeast Asia [map] 2,072

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