Funding for this research was provided by:
CAMS Initiative for Innovative Medicine (2019-I2M-2-007)
Received: 6 April 2020
Accepted: 9 October 2020
First Online: 12 November 2020
Ethics approval and consent to participate
: This study has been approved by the Ethics Review Committee at Department of Scientific Research, Peking Union Medical College Hospital, Beijing, China (ID: HS-1345, May 23rd 2017). All study centers signed and authorized Peking Union Medical College Hospital, the leader of this study, to conduct ethic review and all centers recognized the results. Since no children (under 16 years old) was enrolled in this study, all participants provided informed consent with their own signature.
: Not applicable.
: The authors declare that they have no competing interests.