Chen, Wang
Jiang, Qian
Yan, Guowei
Yang, Deqin
Funding for this research was provided by:
National Natural Science Foundation of China (31571508, 81170950)
Article History
Received: 11 August 2019
Accepted: 23 September 2020
First Online: 28 October 2020
Ethics approval and consent to participate
: This experiment was approved by the Ethics Committee of Affiliated Hospital of Stomatology of Chongqing Medical University and the approval number is CQHS-IRB-2016-05. Informed and written consent was obtained from the guardians of all children.
: Not applicable.
: The authors declare that they have no competing interests.