Zhang, Yan-Yan
Hong, Xia
Wang, Zhen
Li, Wei
Su, Jia-Zeng
Chen, Yan
Gao, Yan
Yu, Guang-Yan
Funding for this research was provided by:
National Natural Science Foundation of China (81671005, 81974151)
Article History
Received: 14 November 2019
Revised: 27 March 2020
Accepted: 8 April 2020
First Online: 26 May 2020
Compliance with ethical standards
: This study complies with the Declaration of Helsinki. The study protocol was approved by the Ethics Committee for Human Experiments of the Peking University School of Stomatology.
: None.