Wu, Lingli
Ma, Bin
Yu, Fei
Ma, Zhongming
Meng, Qingtao
Li, Zhiqiang http://orcid.org/0000-0002-5249-8985
Zhou, Haijing
Article History
Received: 9 August 2021
Accepted: 6 February 2022
First Online: 20 December 2022
Declarations
:
: This study was approved by the ethics committee of the Medical College of Northwest Minzu University (XBMU-YX-2018020). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Parental written consent for all children included in this study was obtained.
: The authors declare no competing interests.