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Tanikawa Plast Aesthet Res 2020;7:48 I http://dx.doi.org/10.20517/2347-9264.2020.136 Page 15 of 16

Financial support and sponsorship
This work was supported by JSPS KAKENHI (No. JP 19K10403). The funding body has no roles in the
experiment design, collection, analysis and interpretation of data, and writing of the manuscript.

Conflicts of interest
The author declared that there are no conflicts of interest.

Ethical approval and consent to participate
Research involving human subjects, human material or human data was performed in accordance with
the Declaration of Helsinki and approved by the ethics committee for medical research at Osaka University
Dental Hospital (project ID: H25-E37-1). An informed consent to participate in the study was obtained
from participants.

Consent for publication
A statement that a written informed consent for publication was obtained.

Copyright
© The Author(s) 2020.

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