Huang, Xinjie
Chen, Yajun
Pang, Wenbo
Peng, Chunhui
Wu, Dongyang
Article History
Received: 11 December 2020
Accepted: 30 March 2021
First Online: 2 April 2021
Declarations
:
: This study is approved by the Medical Ethics Committee of Beijing Children's Hospital, Capital Medical University (2020-Z-093). Need for written informed consent was waived owing to the retrospective nature of the study.
: The authors declare that they have no competing interests.