Kim, Nalee
Lee, Chang Geol
Kim, Eui Hyun
Kim, Chang-Hoon
Keum, Ki Chang
Lee, Kyu-Sung
Chang, Jong Hee
Suh, Chang-Ok https://orcid.org/0000-0002-3375-7072
Article History
Received: 10 September 2018
Accepted: 21 November 2018
First Online: 30 November 2018
Compliance with ethical standards
:
: The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The requirement for informed consent was waived owing to the study’s retrospective nature.