Lee, Sung Ryul http://orcid.org/0000-0003-0201-0627
Park, Pyoung Jae
Article History
Received: 9 October 2019
Accepted: 7 January 2020
First Online: 14 January 2020
Compliance with ethical standards
:
: Sung Ryul Lee and Pyoung Jae Park have no conflicts of interest or financial ties to disclose.
: This study was approved by the Institutional Review Board of Damsoyu Hospital (DSY-2019–003).
: All procedures performed in studies involving 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.