Zhai, Kun
Wu, Yan http://orcid.org/0000-0003-1566-614X
Shen, Shipeng
Tian, Wei
Cao, Huibo
Chai, Yisheng
Chakoumakos, Bryan C.
Shang, Dashan http://orcid.org/0000-0003-3573-8390
Yan, Liqin
Wang, Fangwei
Sun, Young http://orcid.org/0000-0001-8879-3508
Article History
Received: 12 January 2017
Accepted: 12 July 2017
First Online: 12 September 2017
Competing interests
: The authors declare no competing financial interests.