Zhou, Yanfen
Zhao, Mengxin
Meng, Zhe https://orcid.org/0000-0003-1080-0928
Wang, Zelan
Men, Xiuqin
Li, Jiguang
Li, Heping
Yang, Jinhui
Funding for this research was provided by:
National Natural Science Foundation of China (21768003)
National First-Rate Discipline Construction Project of Ningxia (NXYLXK2017A04)
Major Innovations Project for Building First-Class Universities in China's Western Region (ZKZD2017003)
Article History
Received: 6 January 2019
Accepted: 22 May 2019
First Online: 2 July 2019
Compliance with ethical standard
: The author(s) declare that they have no competing interests.