Qin, Qiao
Fan, Fangfang
Jia, Jia
Zhang, Yan
Zheng, Bo
Article History
Received: 1 October 2020
Accepted: 26 December 2020
First Online: 12 January 2021
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: Informed consent was obtained from all participants, and the study protocol was approved by the ethics committee of Peking University First Hospital.
: Informed consent was obtained from all individual participants included in the study. Consent to publish: patients signed informed consent regarding publishing their data.