Xin, Zhen-Hui
Meng, Ya-Li
Jiang, Wen-Jing
Li, Ya-Peng
Ge, Li-Ping
Zhang, Cun-Hui
Liu, Lian-Na
Kang, Yan-Fei http://orcid.org/0000-0002-9170-4614
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (B2016405026)
Young Elitist Foundation of Hebei Province (BJ2016003)
Hebei North University PhD startup fund (12995556)
Guide projects of Department of Education of Hebei province (Z2019028)
Hebei North University Fund (YB2018002, QN2018008, QN2018012)
Article History
Received: 16 October 2019
Accepted: 1 February 2020
First Online: 18 February 2020
Competing interests
: The authors declare that they have no competing interests.