Funding for this research was provided by:
Research Foundation of Peking University First Hospital (2017QN23)
National Key Research & Development Project of China (2016YFC1301304)
National Science & Technology Support Program of China (2012BAI37B05)
Article History
Received: 21 August 2020
Accepted: 11 January 2021
First Online: 22 January 2021
Ethics approval and consent to participate
: This study was conducted in accordance with the Declaration of Helsinki, and the protocol was approved by the Ethical Review Committee of Peking University First Hospital. Administrative permissions from the Ethical Review Committee of Peking University First Hospital were required to access the raw data. The need for consent was waived because of the retrospective data.
: Not applicable.
: The authors declare that they have no competing interests.