Yang, Young Hoon
Kim, Bu Ki
Mun, Su Joung
Choi, Hyun Tae
Chung, Young Taek http://orcid.org/0000-0002-8203-8445
Article History
Received: 21 November 2017
Accepted: 1 June 2018
First Online: 20 July 2018
Ethics approval and consent to participate
: This study followed the tenets of the Declaration of Helsinki. Written informed consent was obtained from the patient.
: Full verbal and written consent has been obtained from the patient for submission of this manuscript for 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.