Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (3332018039)
Chinese National Key Technology R&D Program, Ministry of Science and Technology (2017YFC0907601, 2017YFC0907602, 2016YFC0901500)
CAMS Innovation Fund for Medical Sciences (2019-I2M-2-008)
Received: 4 August 2020
Accepted: 26 December 2020
First Online: 11 January 2021
Ethics approval and consent to participate
: This study was approved by the institutional review board (IRB) of Peking Union Medical College Hospital. Informed consent was obtained.
: Not applicable.
: The authors declare that they have no competing interests.