Byun, Jieun
Choi, Sang Hyun
Byun, Jae Ho
Lee, So Jung
Kim, So Yeon
Won, Hyung Jin
Shin, Yong Moon
Kim, Pyo-Nyun
Article History
Received: 30 November 2019
Accepted: 31 March 2020
First Online: 20 April 2020
Compliance with ethical standards
:
: Jieun Byun, Sang Hyun Choi, Jae Ho Byun, So Jung Lee, So Yeon Kim, Hyung Jin Won, Yong Moon Shin and Pyo-Nyun Kim declare no conflicts of interest that pertain to this work.
: The study protocol was approved by the institutional review board of our center.
: The need for informed consent was waived by the institutional review board of our center.