Funding for this research was provided by:
National Natural Science Foundation of China (30860248, 71804029)
Key Technologies Research and Development Program (2009BAI77B05)
Guangdong Medical Research Foundation (C2018081)
Doctoral research start-up foundation of Guangdong Medical University (B2019033)
Received: 27 March 2020
Accepted: 20 October 2020
First Online: 9 November 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board (IRB) at the Affiliated Hospital of Guangdong Medical University. Verbal informed consent for publication was obtained from the participants and/or their relatives, as approved by the IRB.
: Not applicable.
: The authors declare that they have no competing interests.