Funding for this research was provided by:
Beijing Nova Program (Z181100006218085)
Special Foundation for the Cultivation of Excellent Youth Science in PLA General Hospital (2018-YQPY-003)
Received: 22 December 2020
Accepted: 30 March 2021
First Online: 7 April 2021
: This study was approved by the Biomedical Ethics Committee of Chinese PLA general hospital, and written informed consent with signature or fingerprint was obtained from each respondent.
: Not required.
: None declared.