Academic Institutions Lifetime |
Academic Institutions Prior Five Years |
Non-academic Institutions Lifetime |
|||
---|---|---|---|---|---|
#1 | United States | #1 | China | #1 | Spain |
#2 | United States | #2 | Italy | #2 | Spain |
#3 | Japan | #3 | India | #3 | United States |
#5 | Germany | #4 | China | #4 | Spain |
#6 | Slovenia | #6 | Iraq | #5 | Spain |
#7 | China | #7 | Japan | #6 | Spain |
#8 | Italy | #8 | Turkey | #7 | Spain |
#9 | United States | #9 | Portugal | #8 | United States |
#10 | United States | #10 | Germany | #9 | Spain |
#11 | France | #11 | United Kingdom | #10 | Japan |
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