Funding for this research was provided by:
Key Technologies Research and Development Program (2016YFC1300800)
Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support (DFL20180801)
Received: 2 February 2020
Accepted: 24 August 2020
First Online: 3 September 2020
Ethics approval and consent to participate
: Participants indicated their agreement to participate in the study via the electronic informed consent included in the survey form. The ethic approval for this study was issued by the Institutional Review Board of the Xuanwu Hospital of Capital Medical University (Xuanwu Hospital, No.2017082).
: Not applicable.
: The authors declare that they have no competing interests.