Zhou, Guangchao
Leng, Diya
Li, Mingming
Zhou, Yang
Zhang, Cuifeng
Sun, Chao
Wu, Daming http://orcid.org/0000-0002-2326-9630
Funding for this research was provided by:
the Scientific Research of Jiangsu Commission of Health (H2017050)
Article History
Received: 22 May 2019
Accepted: 29 January 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: This study was approved by the Ethical Committee Department, the Affiliated Stomatological Hospital of Nanjing Medical University (PJ2017–053-001). Written informed consents were obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.