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254 Studies found for: every 12 hours AND every 12 hours | Mexico

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Map Legend
Region Name Number of Studies
World [map] 254
North America 254
United States 147 [studies]
Alabama 75 [studies]
Alaska 2 [studies]
Arizona 70 [studies]
Arkansas 38 [studies]
California 122 [studies]
Colorado 67 [studies]
Connecticut 43 [studies]
Delaware 19 [studies]
District of Columbia 17 [studies]
Florida 109 [studies]
Georgia 72 [studies]
Hawaii 6 [studies]
Idaho 25 [studies]
Illinois 72 [studies]
Indiana 62 [studies]
Iowa 23 [studies]
Kansas 36 [studies]
Kentucky 47 [studies]
Louisiana 52 [studies]
Maine 16 [studies]
Maryland 53 [studies]
Massachusetts 60 [studies]
Michigan 67 [studies]
Minnesota 40 [studies]
Mississippi 22 [studies]
Missouri 74 [studies]
Montana 27 [studies]
Nebraska 47 [studies]
Nevada 41 [studies]
New Hampshire 15 [studies]
New Jersey 71 [studies]
New Mexico 31 [studies]
New York 88 [studies]
North Carolina 81 [studies]
North Dakota 11 [studies]
Ohio 100 [studies]
Oklahoma 51 [studies]
Oregon 51 [studies]
Pennsylvania 83 [studies]
Rhode Island 23 [studies]
South Carolina 64 [studies]
South Dakota 13 [studies]
Tennessee 50 [studies]
Texas 112 [studies]
Utah 36 [studies]
Vermont 14 [studies]
Virginia 65 [studies]
Washington 67 [studies]
West Virginia 13 [studies]
Wisconsin 44 [studies]

Click on a [map] link to show a map of that region.

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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.