Kim, Hyunji
Park, Sujin
Ha, Sejin
Kim, Jae Seung
Kim, Dae Yeon
Oh, Minyoung
Article History
Received: 21 May 2019
Revised: 12 August 2019
Accepted: 14 August 2019
First Online: 21 August 2019
Compliance with Ethical Standards
:
: Hyunji Kim, Sujin Park, Sejin Ha, Jae Seung Kim, Dae Yeon Kim, and Minyoung Oh declare that they have no conflicts of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the respective institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent was not required.
: The institutional review board at our institute approved this retrospective study, and the requirement to obtain informed consent was waived.