Jeong, Seung Hee
Chen, Si
Huo, Jinxing
Gamstedt, Erik Kristofer
Liu, Johan
Zhang, Shi-Li
Zhang, Zhi-Bin
Hjort, Klas
Wu, Zhigang
Article History
Received: 8 September 2015
Accepted: 13 November 2015
First Online: 16 December 2015
Competing interests
: The authors declare no competing financial interests.