Chang, Y., Cho, S., Kim, I., Bahk, J., & Khang, Y. (2018). Trends in Inequality in Cigarette Smoking Prevalence by Income According to Recent Anti-smoking Policies in Korea: Use of Three National Surveys. J Prev Med Public Health.

Chang, Youngs, Sanghyun Cho, Ikhan Kim, Jinwook Bahk, ja Young-Ho Khang. "Trends in Inequality in Cigarette Smoking Prevalence By Income According to Recent Anti-smoking Policies in Korea: Use of Three National Surveys." J Prev Med Public Health 2018.

Chang, Youngs, et al. "Trends in Inequality in Cigarette Smoking Prevalence By Income According to Recent Anti-smoking Policies in Korea: Use of Three National Surveys." J Prev Med Public Health 2018.