Shrestha, Rachana
Liu, Xin
Chen, Shoucheng
Li, Zhipeng
Chen, Zetao
Pow, Edmond H. N.
Chen, Zhuofan
Huang, Baoxin http://orcid.org/0000-0003-0805-8904
Funding for this research was provided by:
National Natural Science Foundation of China (81400550, 81600914, 81470783)
Article History
Received: 15 March 2019
Accepted: 9 May 2019
First Online: 25 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Ethical Committee of Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University (ERC-[2015]-32) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This study was retrospective, and it did not alter the management of the patients; thus, no specific consent was required.