Yang, Jing
Wang, Fei
Lv, Junping
Liu, Qi
Nan, Fangru
Liu, Xudong
Xu, Lan
Xie, Shulian
Feng, Jia
Funding for this research was provided by:
Social Development Foundation of Shanxi (201603D321001)
Article History
Received: 18 August 2019
Accepted: 18 November 2019
First Online: 16 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.