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6376 Studies found for: sleep AND sleep quality

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Map Legend
Region Name Number of Studies
World 6,376
Africa [map] 47
Central America [map] 26
East Asia [map] 684
Japan 91 [studies]
Europe [map] 1,837
Middle East [map] 307
North America 2,847
Canada [map] 402 [studies]
Mexico 38 [studies]
United States [map] 2,515 [studies]
North Asia [map] 61
Pacifica [map] 87
South America [map] 213
South Asia [map] 41
Southeast Asia [map] 75

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