Region
- United States 106 results
- Great Britain 22 results
- Canada 10 results
- France 8 results
- Africa 6 results
- India 6 results
- Europe 4 results
- Kenya 4 results
- Thailand 4 results
- Iraq 3 results
- Kurdistan 3 results
- Mediterranean region 3 results
- Africa, East 2 results
- Africa, Sub-Saharan 2 results
- Asia 2 results
- Athens 2 results
- Australia 2 results
- Baltimore 2 results
- California 2 results
- Cost effectiveness 2 results
- Delhi 2 results
- Developing Countries 2 results
- Developing countries 2 results
- England 2 results
- Georgia 2 results
- Idaho 2 results
- Islands of the Pacific 2 results
- Italy 2 results
- Maryland 2 results
- Micronesia (Federated States) 2 results
- New York 2 results
- New York (State) 2 results
- New Zealand 2 results
- Nigeria 2 results
- Ohio 2 results
- Pacific Area 2 results
- Russia (Federation) 2 results
- Russie 2 results
- Saint Petersburg 2 results
- Saint-Petersbourg 2 results
- South Africa 2 results
- Sydney (N.S.W.) 2 results
- Tanzania 2 results
- Ukraine 2 results
- Vārānasi (Uttar Pradesh) 2 results
- Yap 2 results