Choi, Jae-Hwan
Oh, Eun Hye
Park, Min-Gyu
Baik, Seung Kug
Cho, Han-Jin
Choi, Seo Young
Lee, Tae-Hong
Kim, Ji Soo
Choi, Kwang-Dong http://orcid.org/0000-0002-9373-4710
Article History
Received: 12 October 2018
Accepted: 14 October 2018
First Online: 19 October 2018
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: This study followed the tenets of Declaration of Helsinki and was approved by Institutional Review Board of Pusan National University and Pusan National University Yangsan Hospitals. Informed contents were obtained after the nature and possible consequence of this study had been explained to the participants.