Choi, Hye Sook; Park, Yong Bum; Shin, Kyeong Cheol; Jang, Seung Hun; Choe, Kang Hyeon; Kim, Young Sam; Kyung, Sun Young; Yoon, Sung Ho; Kim, Ju Sang; Jung, Sung Soo
ArticleIssue Date2019CitationINTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE, v.14, pp.471 - 478PublisherDOVE MEDICAL PRESS LTD