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48441 Studies found for: during AND before

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Map Legend
Region Name Number of Studies
World 48,441
Africa [map] 1,809
Central America [map] 549
East Asia [map] 5,207
Japan 1,006 [studies]
Europe [map] 16,916
Middle East [map] 3,103
North America 19,981
Canada [map] 3,861 [studies]
Mexico 810 [studies]
United States [map] 17,542 [studies]
North Asia [map] 1,396
Pacifica [map] 1,439
South America [map] 2,053
South Asia [map] 826
Southeast Asia [map] 1,194

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.