Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (3332018019)
Received: 24 February 2020
Accepted: 27 May 2021
First Online: 6 June 2021
: The study was approved by the ethics review committee of Peking Union Medical College Hospital, the leading centre (HS-1345). Written informed consent was obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.