Lee, S. R. http://orcid.org/0000-0003-0201-0627
Article History
Received: 10 August 2017
Accepted: 22 January 2018
First Online: 1 February 2018
Compliance with ethical standards
:
: SRL has no conflict of interest to disclose.
: This study was approved by the Institutional Review Board of Damsoyu Hospital.
: All procedures performed in studies human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.