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3285 Studies found for: Chronic Obstructive Pulmonary Disease

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Map Legend
Region Name Number of Studies
World 3,285
Africa [map] 115
Central America [map] 27
East Asia [map] 397
Japan 81 [studies]
Europe [map] 1,535
Middle East [map] 132
North America 1,011
Canada [map] 289 [studies]
Mexico 52 [studies]
United States [map] 828 [studies]
North Asia [map] 160
Pacifica [map] 112
South America [map] 195
South Asia [map] 49
Southeast Asia [map] 73

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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.