Qu, Xing
Houser, Shannon H.
Tian, Meirong
Zhang, Qiong
Pan, Jay
Zhang, Wei
Article History
Received: 2 February 2022
Accepted: 20 April 2022
First Online: 29 April 2022
Declarations
:
: All study procedures were conducted in accordance with the ethical standards of the Declaration of Helsinki. Ethical approval was obtained from the Institutional Review Board of Stomatology School, Sichuan University (IRB reference number: WCHSIRB-D-2019–013). Each study participant received an electronic written informed consent form to explain the content of the survey before they completed the questionnaire.
: Not applicable.
: There is no conflict of interest or disclosure of any conflict of interest that may exist.