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5444 studies found for:    Lung Diseases, Obstructive
5444 studies found, shown on map.
A similar map is available for all studies in
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Map Legend
Region Name   Number of Studies
World 5444  
Africa   [map]   176  
Central America   [map]   74  
East Asia   [map]   494  
Japan 138   [studies]
Europe   [map]   2203  
Middle East   [map]   224  
North America 2133  
Canada   [map]   506   [studies]
Mexico 118   [studies]
United States   [map]   1811   [studies]
North Asia   [map]   265  
Pacifica   [map]   187  
South America   [map]   337  
South Asia   [map]   81  
Southeast Asia   [map]   133  

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.