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3091 studies found for:    Pulmonary Disease, Chronic Obstructive
3091 studies found, shown on map.
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Map Legend
Region Name   Number of Studies
World 3091  
Africa   [map]   94  
Central America   [map]   33  
East Asia   [map]   292  
Japan 66   [studies]
Europe   [map]   1422  
Middle East   [map]   127  
North America 1042  
Canada   [map]   281   [studies]
Mexico 49   [studies]
United States   [map]   863   [studies]
North Asia   [map]   140  
Pacifica   [map]   112  
South America   [map]   193  
South Asia   [map]   48  
Southeast Asia   [map]   68  

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.