Ha, Sejin
Park, Sujin
Kim, Hyunji
Go, Heounjeong
Lee, Seung Hun
Choi, Ji Yoon
Hong, Jung Yong
Ryu, Jin-Sook http://orcid.org/0000-0002-8339-2809
Article History
Received: 10 August 2018
Revised: 29 August 2018
Accepted: 3 September 2018
First Online: 12 September 2018
Compliance with Ethical Standards
:
: Sejin Ha, Sujin Park, Hyunji Kim, Heounjeong Go, Seung Hun Lee, Ji Yoon Choi, Jung Yong Hong, and Jin-Sook Ryu 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 committees and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: The study protocol was approved by the institutional review board of our institute, which waived the requirement for informed consent due to the retrospective nature of the study (IRB no. 2018-1391-0001).