Funding for this research was provided by:
the Key Research and Development Project of Ningxia Hui Autonomous Region (2018BBF33006)
Received: 20 May 2021
Accepted: 31 May 2021
First Online: 22 June 2021
: All applicable institutional guidelines for the care and use of animals were followed.
: Not applicable.
: The authors declare that they have no conflict of interest.