- Original Articles Pulmonology The effects of secondhand smoke on chronic obstructive pulmonary disease in nonsmoking Korean adults
- Woong Jun Kim, June Seok Song, Dong Won Park, Hyun Jung Kwak, Ji-Yong Moon, Sang-Heon Kim, Jang Won Sohn, Ho Joo Yoon, Dong Ho Shin, Sung Soo Park, Tae-Hyung Kim
- Korean J Intern Med. 2014;29(5):613-619.