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18520 Studies found for: for AND survey

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Map Legend
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World 18,520
Africa [map] 560
Central America [map] 182
East Asia [map] 1,377
Japan 301 [studies]
Europe [map] 3,596
Middle East [map] 589
North America 10,895
Canada [map] 1,335 [studies]
Mexico 235 [studies]
United States [map] 9,865 [studies]
North Asia [map] 350
Pacifica [map] 333
South America [map] 480
South Asia [map] 264
Southeast Asia [map] 317
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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.