Lee, Il Ok
Kim, Young Sung
Chang, Hae Wone http://orcid.org/0000-0002-0116-3229
Kim, Heezoo
Lim, Byung Gun
Lee, Mido
Article History
Received: 29 November 2017
Accepted: 10 May 2018
First Online: 24 May 2018
Ethics approval and consent to participate
: This study was approved by the institutional review board at Korea University Guro Hospital, Seoul, Korea, in 2017 (protocol: KUGH17171-001). Written informed consent was obtained from all patients.
: The authors declare that they have no competing interests.
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