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269 Studies found for: preschoolers AND old

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Map Legend
Region Name Number of Studies
World [map] 269
North America 110
United States 90 [studies]
Alabama 7 [studies]
Alaska 1 [studies]
Arizona 4 [studies]
Arkansas 3 [studies]
California 24 [studies]
Colorado 3 [studies]
Connecticut 7 [studies]
Delaware 2 [studies]
District of Columbia 6 [studies]
Florida 16 [studies]
Georgia 5 [studies]
Hawaii 2 [studies]
Idaho 2 [studies]
Illinois 9 [studies]
Indiana 5 [studies]
Iowa 3 [studies]
Kansas 1 [studies]
Kentucky 1 [studies]
Louisiana 3 [studies]
Maine 1 [studies]
Maryland 11 [studies]
Massachusetts 8 [studies]
Michigan 9 [studies]
Minnesota 8 [studies]
Mississippi 2 [studies]
Missouri 6 [studies]
Nebraska 4 [studies]
Nevada 4 [studies]
New Jersey 6 [studies]
New Mexico 1 [studies]
New York 10 [studies]
North Carolina 12 [studies]
Ohio 14 [studies]
Oklahoma 5 [studies]
Oregon 7 [studies]
Pennsylvania 13 [studies]
South Carolina 4 [studies]
South Dakota 1 [studies]
Tennessee 18 [studies]
Texas 13 [studies]
Utah 4 [studies]
Vermont 1 [studies]
Virginia 8 [studies]
Washington 5 [studies]
Wisconsin 3 [studies]
Wyoming 1 [studies]

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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.