Jung, Hwi-Dong
Lim, Jung-Hwan
Kim, Hyung Jun
Nam, Woong
Cha, In-Ho http://orcid.org/0000-0001-8259-2190
Article History
Received: 20 April 2021
Accepted: 12 May 2021
First Online: 1 July 2021
Declarations
:
: This retrospective study conforms to the Declaration of Helsinki on medical protocols and ethics, and received informed consents waiver approval from the regional Ethical Review Board of Yonsei University Dental Hospital Institutional Review Board (IRB 2-2014-0031).
: This manuscript has not been published or presented elsewhere in part or in entirety and is not under consideration by another journal. We have read and understood your journal’s policies, and we believe that neither the manuscript nor the study violates any of these.
: There are no conflicts of interest to declare.