Kang, Dong-Woo http://orcid.org/0000-0002-0118-0053
Yun, Pil-Young http://orcid.org/0000-0001-6097-1229
Choi, Yong-Hoon http://orcid.org/0000-0001-8222-219X
Kim, Young-Kyun http://orcid.org/0000-0002-7268-3870
Article History
Received: 24 June 2019
Accepted: 20 August 2019
First Online: 16 September 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Seoul National University Bundang Hospital (IRB No. B-1811-505-103).
: Consent for publication was obtained.
: The authors declare that they have no competing interests.