Fang, Yi Wei
Song, Hong Cheng
Sun, Ning
Zhang, Wei Ping
Article History
Received: 22 February 2022
Accepted: 8 June 2022
First Online: 22 June 2022
Declarations
:
: This study was conducted in accordance with the principles of the Declaration of Helsinki, and this study was approved by the Institutional Review Board of Beijing Children's Hospital,Capital Medical University with waiver of informed consent. Because of the retrospective nature of the study, patient consent for inclusion was waived.
: Not applicable.
: Not applicable.