Funding for this research was provided by:
Guangzhou Municipal Science and Technology Project (201803010046)
National Natural Science Foundation of China (81672232)
Science and Technology Planning Project of Guangdong Province (2015B020233013)
Received: 15 September 2020
Accepted: 12 November 2020
First Online: 20 November 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of General Hospital of Southern Theatre Command of PLA and the written informed consent for participation in the study was obtained.
: Written informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.