Guo, Jing
Cao, Yujin
Liu, Hui
Zhang, Rubing
Xian, Mo
Liu, Huizhou
Funding for this research was provided by:
National Natural Science Foundation of China (No. 21572242)
Taishan Scholars Climbing Program of Shandong (No. tspd20150210)
Article History
Received: 9 August 2018
Revised: 1 December 2018
Accepted: 11 December 2018
First Online: 5 February 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: Not required.