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Authors
Yu, Sun-Kyoung https://orcid.org/0000-0003-0801-1663
Cho, Yonghwa https://orcid.org/0000-0001-8053-8289
Seo, Yo-Seob https://orcid.org/0000-0003-1804-5648
Kim, Jae-Sung https://orcid.org/0000-0002-3584-6351
Kim, Do Kyung https://orcid.org/0000-0001-6254-946X
Kim, Heung-Joong https://orcid.org/0000-0003-1636-3669
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Funding
Funding for this research was provided by:
National Research Foundation of Korea (2016R1D1A1B02008797, 2017R1A1A3A04069265)
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Article History
Received: 5 September 2020
Accepted: 19 November 2020
First Online: 2 January 2021
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: This retrospective study was conducted with the approval of the Research Ethics Committee of Chosun University Dental Hospital (approval number, CUDHIRB-1902-002) and followed medical protocol and ethics as outlined in the Declaration of Helsinki.
: Informed consent from individual participants was not required for this retrospective study.
