Lee, JungHyun
Lee, Kun Sei https://orcid.org/0000-0003-1552-6761
Kim, Hyeongsu
Jeong, Hyoseon
Choi, Min-Jung
Yoo, Hai-Won
Han, Tae-Hwa
Lee, Hyunjung
Funding for this research was provided by:
Konkuk University
Article History
Received: 30 August 2019
Accepted: 12 February 2020
First Online: 19 February 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the Institutional Review Boards of Konkuk University(7001355-201909-E-100). This study used the secondary data of NHIS with omitting individual’s information, so there was no need of the informed consents from the study population.
: Not applicable.
: The authors declare that they have no competing interests.