Funding for this research was provided by:
This work was supported by the Foundation of ShanDong Educational Committee of China (No. J12LL05). (No. J12LL05)
Text and Data Mining valid from 2019-01-22
Received: 10 December 2018
Accepted: 10 January 2019
First Online: 22 January 2019
Ethics approval and consent to participate
: All experimental procedures were approved by the Ethics Committee of the School of Stomatology, Binzhou Medical University.
: Not applicable
: The authors declare that they have no competing interests.
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