Li, Fei
Wu, Si-Cheng
Zhang, Zhi-Yuan
Lo, Edward Chin Man
Gu, Wen-Jia
Tao, Dan-Ying
Wang, Xing
Tai, Bao-Jun
Hu, De-Yu
Lin, Huan-Cai
Wang, Bo
Si, Yan
Wang, Chun-Xiao
Zheng, Shu-Guo
Liu, Xue-Nan
Rong, Wen-Sheng
Wang, Wei-Jian
Feng, Xi-Ping
Lu, Hai-Xia
Article History
Received: 11 May 2021
Accepted: 16 November 2021
First Online: 15 December 2021
Declarations
:
: For both surveys, ethical approval was obtained from the Ethics Committee of the Chinese Stomatological Association. Written informed consent was obtained from the children’s parents or guardians prior to the implementation of data collection. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.