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1132 Studies found for: subjects AND Sofia

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Map Legend
Region Name Number of Studies
World [map] 1,132
North America 801
United States 745 [studies]
Alabama 303 [studies]
Alaska 15 [studies]
Arizona 353 [studies]
Arkansas 178 [studies]
California 627 [studies]
Colorado 301 [studies]
Connecticut 241 [studies]
Delaware 50 [studies]
District of Columbia 108 [studies]
Florida 609 [studies]
Georgia 386 [studies]
Hawaii 38 [studies]
Idaho 156 [studies]
Illinois 422 [studies]
Indiana 265 [studies]
Iowa 139 [studies]
Kansas 213 [studies]
Kentucky 272 [studies]
Louisiana 301 [studies]
Maine 68 [studies]
Maryland 351 [studies]
Massachusetts 317 [studies]
Michigan 354 [studies]
Minnesota 254 [studies]
Mississippi 136 [studies]
Missouri 342 [studies]
Montana 85 [studies]
Nebraska 171 [studies]
Nevada 173 [studies]
New Hampshire 78 [studies]
New Jersey 305 [studies]
New Mexico 123 [studies]
New York 491 [studies]
North Carolina 465 [studies]
North Dakota 75 [studies]
Ohio 462 [studies]
Oklahoma 278 [studies]
Oregon 201 [studies]
Pennsylvania 470 [studies]
Rhode Island 80 [studies]
South Carolina 303 [studies]
South Dakota 72 [studies]
Tennessee 386 [studies]
Texas 604 [studies]
Utah 217 [studies]
Vermont 60 [studies]
Virginia 311 [studies]
Washington 319 [studies]
West Virginia 83 [studies]
Wisconsin 208 [studies]
Wyoming 4 [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.