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4813 studies found for:    "Lung Diseases, Obstructive"
4813 studies found, shown on map.
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Map Legend
Region Name   Number of Studies
World 4813  
Africa   [map]   167  
Central America   [map]   70  
East Asia   [map]   440  
Japan 133   [studies]
Europe   [map]   1975  
Middle East   [map]   199  
North America 1907  
Canada   [map]   467   [studies]
Mexico 116   [studies]
United States   [map]   1614   [studies]
North Asia   [map]   255  
Pacifica   [map]   173  
South America   [map]   307  
South Asia   [map]   77  
Southeast Asia   [map]   134  

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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.