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Authors
Oh, Min-Hee
Cho, Jin-Hyoung http://orcid.org/0000-0002-0342-6379
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Article History
Received: 1 April 2020
Accepted: 13 August 2020
First Online: 22 September 2020
Ethics approval and consent to participate
: This retrospective study was performed after obtaining approval from the Institutional Review Board of at Chonnam National University Dental Hospital (CNUDH-EXP-2017-016).
: Not applicable
: The authors declare that they have no competing interests.
