Lee, Jeong-A
Park, Kwan http://orcid.org/0000-0002-3263-6594
Article History
Received: 3 May 2019
Accepted: 31 July 2019
First Online: 8 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Institutional Review Board of Samsung Medical Center/SMC 2015-12-102) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.