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7701 Studies found for: sleep AND sleep quality

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Map Legend
Region Name Number of Studies
World 7,701
Africa [map] 74
Central America [map] 27
East Asia [map] 883
Japan 95 [studies]
Europe [map] 2,213
Middle East [map] 481
North America 3,278
Canada [map] 477 [studies]
Mexico 43 [studies]
United States [map] 2,872 [studies]
North Asia [map] 67
Pacifica [map] 95
South America [map] 242
South Asia [map] 62
Southeast Asia [map] 97

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