Kim, Tae Jin
Lee, Min Seung
Hwang, Sung Il
Lee, Hak Jong
Hong, Sung Kyu
Article History
Received: 17 July 2018
Accepted: 12 November 2018
First Online: 20 November 2018
Compliance with ethical standards
:
: There are no conflicts of interest, including specific financial interests, relationships, and affiliations relevant to the subject materials described in this manuscript.
: All study protocols were in accordance with the principles of the Helsinki Declaration. We removed personal identifiers and anonymized all data, which exempted the study from the need to obtain informed consent from patients.