Zhang, Yong
Chen, Fan
Kang, Ni
Duan, Jinyu
Xue, Fei
Cai, Yu
Article History
Received: 30 December 2022
Accepted: 19 March 2023
First Online: 24 March 2023
Declarations
:
: The Ethics Committee of the Peking University School and Hospital of Stomatology approved the study protocol. All procedures performed in studies 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.
: The authors declare that they have no conflict of interest.
: The authors declare that they have no conflict of interest.