Kim, Cheong-Ju; Yoon, Hyoung-Kyu; Park, Myung-Jae; Yoo, Kwang-Ha; Jung, Ki-Suck; Park, Jeong-Woong; Lim, Seong Yong; Shim, Jae Jeong; Lee, Yong Chul; Kim, Young-Sam, et al.
ArticleIssue Date2017CitationINTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE, v.12, pp 1589 - 1596PublisherDOVE MEDICAL PRESS LTD