Min-Hyeok Choi, Kyu-Seok Cheong, Byung-Mann Cho, In-Kyung Hwang, Chang-Hun Kim, Myoung-Hee Kim, Seung-Sik Hwang, Jeong-Hun Lim, Tae-Ho Yoon
J Prev Med Public Health. 2011;44(6):242-248. Published online November 14, 2011
DOI:
https://doi.org/10.3961/jpmph.2011.44.6.242