Funding for this research was provided by:
National Natural Science Foundation of China (81472529, 81672668, 81472528, 81272963, 81272964, 81402241, 81672667)
Program for New Century Excellent Talents in University (NCET-13-0439)
Text and Data Mining valid from 2017-09-02
Received: 1 April 2017
Accepted: 29 August 2017
First Online: 2 September 2017
Ethics approval and consent to participate
: All protocols dealing with the patients conformed to the ethical guidelines of the Helsinki Declaration and were approved by the Medical Ethics Committee of Hospital of Stomatology Wuhan University.
: Not applicable.
: All the authors disclose no conflicts.
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