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7490 Studies found for: during AND oxygen

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Map Legend
Region Name Number of Studies
World 7,490
Africa [map] 231
Central America [map] 28
East Asia [map] 602
Japan 51 [studies]
Europe [map] 2,732
Middle East [map] 436
North America 2,483
Canada [map] 500 [studies]
Mexico 75 [studies]
United States [map] 2,004 [studies]
North Asia [map] 100
Pacifica [map] 127
South America [map] 353
South Asia [map] 115
Southeast Asia [map] 105

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