Academic Institutions Lifetime |
Academic Institutions Prior Five Years |
Non-academic Institutions Lifetime |
|||
---|---|---|---|---|---|
#1 | China | #1 | China | #1 | Japan |
#2 | United States | #2 | Italy | #2 | Spain |
#3 | Japan | #3 | United States | #3 | Spain |
#4 | United States | #4 | United States | #4 | |
#5 | United States | #5 | Iran | ||
#6 | Denmark | ||||
#7 | India | ||||
#8 | Iran | ||||
#9 | China | ||||
#10 | Sweden | ||||
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