Kim, Hyeon Jo
Lee, Seong Joo
Lee, Ju Ho
Kim, Seong Hwan
Suh, In Suck
Jeong, Hii Sun http://orcid.org/0000-0001-9408-8207
Article History
Received: 31 August 2019
Accepted: 17 November 2019
First Online: 3 December 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: This study was a retrospective case series. The study protocol was approved by the institutional review board (IRB, number: 2019-04-018). All procedures in the study involving human participants were performed in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: For this type of study, informed consent is not required.