Jeon, Keun Hye
Shin, Dong Wook http://orcid.org/0000-0001-8128-8920
Han, Kyungdo
Kim, Dahye
Yoo, Jung Eun
Jeong, Su-Min
Cho, Jong ho
Article History
Received: 10 July 2019
Revised: 18 February 2020
Accepted: 27 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: This study has been approved by the Institutional Review Board of Samsung Medical Center (IRB File No. SMC 2018-05-020). The IRB has approved a waiver of the requirement to obtain informed consent from research participants. This study was performed in accordance with the Declaration of Helsinki.
: None.
: The data that support the findings of this study are available from NHIS. Restrictions apply to the availability of these data, which were used under license for this study. Data are available at ExternalRef removed with the permission of NIHS.
: The authors declare no competing interests.
: None.