Document is current
Any future updates will be listed below
-
Authors
-
Funding
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (B2019205113, B2018205198)
Department of Education of Hebei Province (SLRC2017041)
Education Department Foundation of Hebei Province (QN2020190)
Foundation of Hebei Normal University (L2020Z04)
- License Information
-
More Information
Article History
Received: 16 September 2020
Accepted: 8 November 2020
First Online: 17 November 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: Written informed consent for publication was obtained from all participants.
