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31303 Studies found for: standard AND United States

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Map Legend
Region Name Number of Studies
World [map] 31,303
Europe 2,669
Austria 461 [studies]
Belgium 878 [studies]
Bosnia and Herzegovina 31 [studies]
Bulgaria 283 [studies]
Croatia 119 [studies]
Czech Republic 148 [studies]
Denmark 418 [studies]
Estonia 113 [studies]
Finland 209 [studies]
France 1,241 [studies]
Germany 1,424 [studies]
Greece 334 [studies]
Hungary 620 [studies]
Iceland 9 [studies]
Ireland 174 [studies]
Italy 1,167 [studies]
Latvia 112 [studies]
Lithuania 106 [studies]
Luxembourg 8 [studies]
Macedonia, The Former Yugoslav Republic of 7 [studies]
Montenegro 1 [studies]
Netherlands 732 [studies]
Norway 214 [studies]
Poland 908 [studies]
Portugal 265 [studies]
Romania 326 [studies]
Serbia 158 [studies]
Slovakia 235 [studies]
Slovenia 49 [studies]
Spain 1,350 [studies]
Sweden 429 [studies]
Switzerland 383 [studies]
United Kingdom 1,307 [studies]

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Studies with no locations are not included in the counts or on the map.

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