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3993 Studies found for: during AND air

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Map Legend
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World 3,993
Africa [map] 170
Central America [map] 53
East Asia [map] 484
Japan 83 [studies]
Europe [map] 1,394
Middle East [map] 273
North America 1,575
Canada [map] 362 [studies]
Mexico 90 [studies]
United States [map] 1,364 [studies]
North Asia [map] 140
Pacifica [map] 141
South America [map] 260
South Asia [map] 86
Southeast Asia [map] 100
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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.