Li, Shutong
Zhang, Yangheng
Yang, Zongcheng
Li, Jingyuan
Li, Ya
Li, Huanjie
Li, Wenjuan
Jia, Jihui
Ge, Shaohua
Sun, Yundong
Article History
Received: 24 December 2020
Accepted: 7 April 2021
First Online: 20 April 2021
Declarations
:
: The experimental protocol was established, according to the ethical guidelines of the Helsinki Declaration and was approved by the Medical Ethics Committee of School of Stomatology of Shandong University (Protocol Number: 20161001). Written informed consent was obtained from individual or guardian participants.
: Not applicable.
: The authors declare no conflict of interest.