Cao, Jun
Zhang, Xuejun http://orcid.org/0000-0003-2358-7564
Liu, Haonan
Yao, Ziming
Bai, Yunsong
Guo, Dong
Feng, Lei
Article History
Received: 27 August 2021
Accepted: 19 November 2021
First Online: 4 December 2021
Declarations
:
: This study was approved by the Institutional Review Board (IRB) of Beijing Children’s Hospital, all methods were carried out in accordance with relevant guidelines and regulations. Written informed consent was waived by the IRB due to the retrospective nature of this study.
: Not applicable.
: The authors declare that they have no competing interests.