Chen, Qionghua
Shen, Yuelin
Xu, Hui
Tang, Xiaolei
Yang, Haiming
Zhao, Shunying
Article History
Received: 22 February 2021
Accepted: 31 May 2021
First Online: 28 July 2021
Declarations
:
: The study was performed in accordance with the Declaration of Helsinki and approved by the Institutional Review Board of <i>Beijing Children</i>’<i>s Hospital, Capital Medical University, National Center for Children</i>’<i>s Health</i> with the number [2021]-E-034-R. Informed Consent was obtained from parents and/or legal guardians of the participants.
: Not applicable.
: The authors declare that they have no competing interests.