Jung, Ju Young
Ryoo, Jae-Hong
Chung, Pil-Wook
Oh, Chang-Mo
Choi, Joong-Myung
Park, Sung Keun
Article History
Received: 12 September 2018
Accepted: 12 January 2019
First Online: 21 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethics approvals for the study protocol and analysis of the data were obtained from the institutional review board of Kangbuk Samsung Hospital.
: Informed consent was obtained from all individual participants included in the study.