Help guide our efforts to modernize
Send us your comments by March 14, 2020. Menu
Open or close the search fields display
All 330686 Studies found for: ALL

Click on the map below to show a more detailed map (when available) or search for studies (when map not available).

Map Legend
Region Name Number of Studies
World [map] 330,686
North America 143,327
United States 128,972 [studies]
Alabama 9,192 [studies]
Alaska 693 [studies]
Arizona 11,011 [studies]
Arkansas 4,946 [studies]
California 33,980 [studies]
Colorado 11,312 [studies]
Connecticut 8,151 [studies]
Delaware 1,932 [studies]
District of Columbia 5,335 [studies]
Florida 22,831 [studies]
Georgia 13,341 [studies]
Hawaii 1,874 [studies]
Idaho 2,695 [studies]
Illinois 17,192 [studies]
Indiana 9,577 [studies]
Iowa 4,986 [studies]
Kansas 6,655 [studies]
Kentucky 7,166 [studies]
Louisiana 7,096 [studies]
Maine 1,872 [studies]
Maryland 17,846 [studies]
Massachusetts 18,639 [studies]
Michigan 13,722 [studies]
Minnesota 11,882 [studies]
Mississippi 3,044 [studies]
Missouri 13,224 [studies]
Montana 2,164 [studies]
Nebraska 5,611 [studies]
Nevada 4,493 [studies]
New Hampshire 2,486 [studies]
New Jersey 10,856 [studies]
New Mexico 3,365 [studies]
New York 27,422 [studies]
North Carolina 18,248 [studies]
North Dakota 1,954 [studies]
Ohio 19,544 [studies]
Oklahoma 6,169 [studies]
Oregon 8,236 [studies]
Pennsylvania 21,348 [studies]
Rhode Island 3,735 [studies]
South Carolina 9,014 [studies]
South Dakota 2,009 [studies]
Tennessee 13,051 [studies]
Texas 27,530 [studies]
Utah 7,206 [studies]
Vermont 1,962 [studies]
Virginia 10,744 [studies]
Washington 12,114 [studies]
West Virginia 2,077 [studies]
Wisconsin 7,713 [studies]
Wyoming 469 [studies]

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

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

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.