9Chen C. CiteSpaee Ⅱ: Detecting and visualizing emerging trends and transient patterns in scientific literature [J]. Joournal of the American Society for Information Science and Technology, 2006, 57 (3): 359 - 377.
10Chen C., Hu Z., Liu S., Tseng H. Emerging trends in regenerative medicine: a scientometric analysis in CiteSpace [J]. Expert Opinion on Biological Therapy, 2012; 12 (5) : 593 - 608.
