Yang, Na Rae
Kim, Ji Hee http://orcid.org/0000-0001-6937-8093
Ahn, Jun Hyong
Oh, Jae Keun
Chang, In Bok
Song, Joon Ho
Article History
Received: 1 March 2019
Revised: 29 April 2019
Accepted: 21 May 2019
First Online: 3 June 2019
Compliance with ethical standards
: This study was approved by the Institutional Review Board (IRB) of the local hospital (IRB No. 2019-01-008-001) 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.
: The authors declare that they have no conflicts of interest.