Choi, Won-Il
Lee, Dong Yoon
Choi, Hyun-Gi
Lee, Choong Won
Funding for this research was provided by:
National Research Foundation of Korea (2014R1A5A2010008)
Article History
Received: 21 March 2019
Accepted: 5 June 2019
First Online: 10 June 2019
Ethics approval and consent to participate
: The current study was approved by the institutional review board at Dongsan Hospital, Keimyung University School of Medicine (2015–05-006). The need for written informed consent was waived. This study was conducted in compliance with the Declaration of Helsinki.
: Not Applicable.
: The authors state that they have no competing interests.