Kim, Sung-Jae
Choi, Yun-Rak
Lee, Wonyong
Jung, Woo-Seok
Chun, Yong-Min
Article History
Received: 13 December 2017
First Online: 18 May 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Institutional review board approval was obtained, and the requirement for informed consent was waived.
: We obtained approval from Institutional review board of our institute and written informed consent was waived as this study is a retrospective analysis of medical and radiological data.