Sun, Jiayin
Han, Wei
Wu, Sijing
Jia, Shuo
Yan, Zhenxian
Guo, Yonghe
Zhao, Yingxin
Zhou, Yujie
Liu, Wei
Article History
Received: 26 November 2020
Accepted: 8 January 2021
First Online: 23 January 2021
Ethics approval and consent to participate
: This study was complied with the Declaration of Helsinki and approved by the Institutional Ethics Committee of Beijing Anzhen Hospital. Written informed consent was waived by the ethics committee because of the data retrospectively obtained from electronic medical records.
: Not applicable.
: The authors declare no competing interests.