Park, Jongmoo
Jung, Jinhong
Kim, Daegeun
Jung, In-Hye
Park, Jin-hong
Kim, Jong Hoon
Lee, Sang-wook
Yoon, Sang Min https://orcid.org/0000-0002-5138-3051
Article History
Received: 2 May 2018
Accepted: 15 October 2018
First Online: 26 October 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Asan Medical Center, and informed consent was waived because of the retrospective nature of the study. The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.