Shao, Rui
Hu, Tao
Zhong, Yi-Si
Li, Xue
Gao, Yi-Bo
Wang, Yi-Fan
Funding for this research was provided by:
Scientific Research in the Public Interest (201502002)
National Nature Science Foundation of China (81500841)
Article History
Received: 12 September 2017
Accepted: 7 May 2018
First Online: 21 May 2018
Ethics approval and consent to participate
: This survey was approved by the Stomatological Ethics Committee of the Chinese Stomatological Association (Approval No. 2014–003) and the Ethics Committee of the West China Hospital of Stomatology at Sichuan University.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.