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1837 Studies found for: North Dakota, United States
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Map Legend
Region Name   Number of Studies
World 1,837  
Africa   [map]   211  
Central America   [map]   328  
East Asia   [map]   249  
Japan 112   [studies]
Europe   [map]   501  
Middle East   [map]   212  
North America 1,837  
Canada   [map]   697   [studies]
Mexico 202   [studies]
United States   [map]   1,837   [studies]
North Asia   [map]   241  
Pacifica   [map]   359  
South America   [map]   260  
South Asia   [map]   113  
Southeast Asia   [map]   141  

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