Funding for this research was provided by:
National Natural Science Foundation of China (81971475, No.81972451)
Received: 7 August 2021
Accepted: 6 November 2021
First Online: 18 November 2021
: This retrospective study was approved by the Institutional Review Board of Peking Union Medical College Hospital. All procedures in the study involving human participants were performed in accordance with the ethical standards of the institutional and/or national research committee, and were pursuant to the 1964 <i>Declaration of Helsinki</i> and its later amendments or comparable ethical standards.
: At the time of registration, all patients agreed to and signed a consent form for the publication of their medical information, including relevant images.
: The authors declare that they have no competing interests.