Funding for this research was provided by:
Major special projects in the 13th five-year plan (2016YFC1301801)
Received: 24 June 2020
Accepted: 14 December 2020
First Online: 11 January 2021
Ethics approval and consent to participate
: The research protocol and informed consent in this study were approved by the Institutional Review Board of Beijing Tiantan Hospital (KY2019-096-02).
: Written informed consents will be obtained from their legally authorized representatives. Privacy of patient will be effectively protected.
: All authors certify that we have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge, or beliefs) in the subject matter or materials discussed in this manuscript.