Choi, Hye Sook; Na, Ju Ock; Lee, Ong Deog; Shin, Kyeong-Cheol; Rhee, Chin Kook; Hwang, Yong Il; Lim, Seong Yong; Yoo, Kwang Ha; Jung, Ki Suck; Park, Yong Bum
ArticleIssue Date2018CitationINTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE, v.13, pp 3233 - 3241PublisherDOVE MEDICAL PRESS LTD