Funding for this research was provided by:
National Key Research and Development Program of China (2016YFC1301800)
National Natural Science Foundation of China (81671129)
Received: 27 August 2020
Accepted: 6 November 2020
First Online: 30 November 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board of the Beijing Tiantan hospital (Ethical No. KY2017-076-01). The privacy of patients was effectively protected.
: Not applicable.
: The authors declare that they have no competing interests.