Funding for this research was provided by:
National Natural Science Foundation of China (81671623)
Received: 8 May 2020
Accepted: 30 September 2020
First Online: 14 October 2020
Ethics approval and consent to participate
: This study has been approved by the Ethics Committee of the Third Affiliated Hospital, Southern Medical University, and all participants signed informed consent forms.
: All authors consented to the publication of this manuscript.
: The authors declare that they have no competing interests.