Kim, Sun Moon http://orcid.org/0000-0003-2010-4440
Choi, Song-Yi http://orcid.org/0000-0002-8496-5613
Kim, Seon Young http://orcid.org/0000-0001-5459-9635
Kim, Jinhyun http://orcid.org/0000-0001-5235-2612
Funding for this research was provided by:
National Research Foundation funded by the Ministry of Education of Korea (NRF-2018R1D1A1B07043681)
Article History
Received: 13 June 2019
Accepted: 16 September 2019
First Online: 24 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interests.
: This study was approved by Chungnam National University Hospital Institutional Review Board (2017-1-31/2017-01-023) and Chungbuk National University Hospital Institutional Review Board (2019-4-25/CBNUH 2017-04-001) and informed consent was waived by each ethics committees. This study was conducted in accordance with the Declaration of Helsinki.