Lee, Sung Ryul http://orcid.org/0000-0003-0201-0627
Article History
Received: 16 May 2020
Accepted: 22 March 2021
First Online: 7 April 2021
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of our institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was provided by all patients included in this study. This study was approved by the Institutional Review Board of Damsoyu Hospital (DSY-2020–001). Informed consent was obtained from all individual patients or their parents/guardians.
: Not Applicable.
: The author declares that they have no conflict of interest.