country,citations
China,327
United States,302
United Kingdom,187
Australia,38
Germany,35
Singapore,27
Canada,25
Netherlands,25
Italy,22
France,17
India,14
South Korea,12
Spain,10
Switzerland,9
Poland,7
Israel,7
Finland,7
Sweden,6
Japan,6
Turkey,6
Taiwan,5
Brazil,4
Egypt,3
Romania,3
Bangladesh,3
Ireland,3
Czech Republic,3
Thailand,3
South Africa,3
Russia,2
Tunisia,1
Korea,1
Saudi Arabia,1
Portugal,1
Malaysia,1
Iran,1
Denmark,1
Cyprus,1
Croatia,1
Chile,1
Belgium,1
Vietnam,1