sun, Hao
Ju, Xiao-Dong
Huang, Hong-Jie
Zhang, Xin
Wang, Jian-Quan
Article History
Received: 2 November 2021
Accepted: 7 February 2022
First Online: 2 March 2022
Declarations
:
: The study was approved by the ethics committee (Peking University Third Hospital Medical Science Research Ethics Committee). This study was a retrospective study and an informed exemption application was obtained from (Peking University Third Hospital Medical Science Research Ethics Committee). All methods were carried out in accordance with relevant guidelines and regulations.
: All authors agreed to publish.
: The authors declare that they have no competing interests” in this section.