Yuan, Xuewen
Wang, Jieguo
Chen, Xiaofeng
Yan, Wu
Niu, Qing
Tang, Ning
Zhang, Ming Zhi
Gu, Wei
Wang, Xu
Article History
Received: 3 November 2021
Accepted: 21 March 2022
First Online: 13 April 2022
Declarations
:
: The retrospective study was approved by the Medical Ethics Committee of Children’s Hospital of Nanjing Medical University (202101014-1). Signed informed consents were obtained from parents or legal guardian for study participation. All methods were carried out in accordance with relevant guidelines and regulations under ethics approval and consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.