Funding for this research was provided by:
Natural Science Foundation of Heilongjiang Province of China (JJ2020TD0027)
National Natural Science Foundation of China (21571045)
Natural Science Foundation of Guizhou Province (QKH-J 2020 1Y032)
Ph.D. Start-up Foundation of Zunyi Medical University (Grant F-883)
Article History
Received: 6 June 2020
Accepted: 2 September 2020
First Online: 12 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.