Lee, Min-Kyung http://orcid.org/0000-0002-6511-9833
Kim, Yoo Mee
Sohn, Seo-Young
Lee, Jae-Hyuk
Won, Young Jun
Kim, Se Hwa http://orcid.org/0000-0003-2452-8419
Article History
Received: 14 December 2018
Accepted: 22 April 2019
First Online: 1 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All studies involving human participants were approved by the institutional review committee, and were performed in accordance with the ethical standards of the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: All participants signed written informed consent, and the Institutional Review Boards of the Korea National Health Insurance Service, Catholic Kwandong University College of Medicine, and International St. Mary’s Hospital approved the study protocol.