Kim, Yunkyung
Kang, Jihun
Kim, Geun-Tae
Article History
Received: 20 February 2018
Revised: 20 April 2018
Accepted: 25 April 2018
First Online: 23 May 2018
Compliance with ethical standards
: The protocol of this study was approved by the institutional review board of the Kosin University Gospel Hospital (KUGH 2018-02-012), and this study was in accordance with the Declaration of Helsinki. Furthermore, a written informed consent was obtained from all participants, and all study processes were in accordance with the guidelines of the Strengthening the Reporting of Observational Studies in Epidemiology.
: None