Kyung Min Kim, Moran Ki, Sung-il Cho, Minki Sung, Jin Kwan Hong, Hae-Kwan Cheong, Jong-Hun Kim, Sang-Eun Lee, Changhwan Lee, Keon-Joo Lee, Yong-Shik Park, Seung Woo Kim, Bo Youl Choi
Epidemiol Health. 2015;37:e2015041. Published online September 17, 2015