Li, Xiaotian
Liu, Lu
Zhang, Jianyun
Ma, Ming
Sun, Lisha
Li, Xuefen
Zhang, Heyu
Wang, Jianbin
Huang, Yanyi
Li, Tiejun
Article History
Received: 25 April 2021
Accepted: 8 June 2021
First Online: 2 August 2021
Ethics
: <b>Compliance and ethics</b> The author(s) declare that they have no conflict of interest. This research was approved by Institutional Review Board of Peking University Hospital of Stomatology, and written informed consent was obtained from all patients (approval NO. PKUSSIRB-201949116).