Tian, Lumei
Guo, Mingyu
Lu, Yafei
Liu, Lingling
Lu, Yuhan
Article History
Received: 18 January 2022
Accepted: 3 July 2022
First Online: 21 July 2022
Compliance with Ethical Standards
:
: The authors declare no competing interests.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all parents for their children’s participation.