Kim, Eugene http://orcid.org/0000-0003-1128-2464
Eo, Mi Young http://orcid.org/0000-0001-7055-9924
Nguyen, Truc Thi Hoang http://orcid.org/0000-0002-8667-6698
Yang, Hoon Joo http://orcid.org/0000-0002-4652-7305
Myoung, Hoon http://orcid.org/0000-0002-9984-8479
Kim, Soung Min http://orcid.org/0000-0002-6916-0489
Article History
Received: 26 November 2018
Accepted: 20 December 2018
First Online: 30 January 2019
Ethics approval and consent to participate
: The study protocol and access to patient records were approved by the Institutional Review Board of Seoul National University (S-D20170024), Seoul, Korea.
: Written informed consent was obtained from the patients for the publication.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.