- Original Articles Pulmonology Korean physician prescription patterns for home oxygen therapy in chronic obstructive pulmonary disease patients
- Youlim Kim, Hwan Il Kim, Ji Young Park, Ji Young Hong, Joo-Hee Kim, Kyung Hoon Min, Chin Kook Rhee, Sunghoon Park, Chang Youl Lee, Seong Yong Lim, Seung Hun Jang, Yong Il Hwang
- Korean J Intern Med. 2022;37(1):119-126.
- Cut-off value of FEV1/FEV6 to determine airflow limitation using handheld spirometry in subjects with risk of chronic obstructive pulmonary disease
- Yong Il Hwang, Youlim Kim, Chin Kook Rhee, Deog Kyeom Kim, Yong Bum Park, Kwang Ha Yoo, Ki-Suck Jung, Chang Youl Lee
- Korean J Intern Med. 2021;36(3):629-635.