Subject Region
United States
184
Canada
7
Developing countries
5
Great Britain
3
Japan
3
Congo (Democratic Republic)
2
Europe
2
European Union countries
2
India
2
Malaysia
2
Africa
1
Africa, Sub-Saharan
1
Appalachian Region
1
Bangladesh
1
Cuba
1
Developed countries
1
East Asia
1
Guatemala
1
Lithuania
1
North America
1
North Carolina
1
Roanoke Rapids
1
Roanoke Rapids (N.C.)
1
Singapore
1
South Africa
1
Switzerland
1
Thailand
1
local
1