Kim, Ji Hee
Ahn, Jun Hyong
Oh, Jae Keun
Song, Joon Ho
Park, Seung Woo
Chang, In Bok http://orcid.org/0000-0001-8003-3264
Article History
Received: 7 July 2019
Revised: 29 July 2019
Accepted: 4 September 2019
First Online: 17 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: This study was approved by the Institutional Review Board (IRB) of the local hospital (IRB No. 2019-05-032) and carried out in accordance with the Declaration of Helsinki.
: Informed consent was waived by the IRB as this was a recording-based study with no patient contact.