Received: 14 June 2020
Accepted: 27 September 2020
First Online: 2 October 2020
Ethics approval and consent to participate
: All participants provided written consent before entering the study according to the regulations of Beijing Shijitan hospital. The study was approved by the Ethics Committee of Beijing Shijitan Hospital.
: Not applicable.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.