Funding for this research was provided by:
CAMS Innovation Fund for Medical Sciences (CIFMS-2017-I2M-1-002)
Received: 19 November 2020
Accepted: 30 March 2021
First Online: 7 April 2021
: The Institutional Review Board of Peking Union Medical College Hospital has approved this study (No. SK-1289).
: Consents for publication have been obtained from all patients.