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9983 Studies found for: every 12 hours

A similar map is available for all studies in

Click on the map below to show a more detailed map (when available) or search for studies (when map not available).

Map Legend
Region Name Number of Studies
World 9,983
Africa [map] 441
Central America [map] 188
East Asia [map] 1,052
Japan 232 [studies]
Europe [map] 2,858
Middle East [map] 561
North America 4,877
Canada [map] 829 [studies]
Mexico 251 [studies]
United States [map] 4,405 [studies]
North Asia [map] 382
Pacifica [map] 359
South America [map] 517
South Asia [map] 222
Southeast Asia [map] 297

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.