Funding for this research was provided by:
the Presidential Fund of the Chinese University of Hong Kong, Shenzhen (PF.01.001428)
Article History
Received: 2 September 2021
Accepted: 22 November 2021
First Online: 18 January 2022
Declarations
:
: No conflict of interest declared.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of Zhengzhou University and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all the surveyed participants.