4670 Studies found for: Recruiting, Not yet recruiting, Available Studies | "Immune System"
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Map Legend
Region Name   Number of Studies
World 4,670  
Africa   [map]   133  
Central America   [map]   52  
East Asia   [map]   628  
Japan 100   [studies]
Europe   [map]   1,463  
Middle East   [map]   177  
North America 2,361  
Canada   [map]   342   [studies]
Mexico 76   [studies]
United States   [map]   2,187   [studies]
North Asia   [map]   135  
Pacifica   [map]   161  
South America   [map]   154  
South Asia   [map]   39  
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.