Choi, Ji Eun https://orcid.org/0000-0001-8105-813X
Seok, Jin Myoung
Ahn, Jungmin
Ji, Yoon Sang
Lee, Kyung Myun
Hong, Sung Hwa
Choi, Byung-Ok
Moon, Il Joon
Funding for this research was provided by:
Korea Health and Welfare Information Service (HI14C3484, HI15C1560, and HI16C0426)
National Research Foundation of Korea (NRF-2017R1A2B2004699)
Article History
Received: 19 January 2018
Accepted: 20 June 2018
First Online: 9 July 2018
Competing Interests
: The authors declare no competing interests.