Funding for this research was provided by:
Beijing Municipal Administration of Hospital's Youth Program (20171102)
Clinical Medicine Plus X - Young Scholars Project of Peking University (PKU2019LCXQ020, PKU2018LCXQ018)
Article History
Received: 25 February 2020
Accepted: 2 October 2020
First Online: 13 October 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.