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150563 Studies found for: efficacy

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Map Legend
Region Name Number of Studies
World 150,563
Africa [map] 5,751
Central America [map] 2,108
East Asia [map] 24,990
Japan 4,239 [studies]
Europe [map] 40,893
Middle East [map] 8,051
North America 65,044
Canada [map] 12,216 [studies]
Mexico 2,636 [studies]
United States [map] 58,427 [studies]
North Asia [map] 4,906
Pacifica [map] 5,319
South America [map] 6,168
South Asia [map] 3,416
Southeast Asia [map] 4,261

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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.