Ha, Suk-Gyu
Huh, Jungah
Lee, Bo-Ram
Kim, Seung-Hyun
Article History
Received: 8 May 2017
Accepted: 11 April 2018
First Online: 19 April 2018
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee at the Korea University Medical Center.
: The authors declare that they have no competing interests.
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