Leem, Ah Young
Kim, Young Sam
Lee, Ji-Hyun
Kim, Tae-Hyung
Kim, Ha Yan
Oh, Yeon Mok
Lee, Sang Do
Jung, Ji Ye http://orcid.org/0000-0003-1589-4142
Funding for this research was provided by:
Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education (2016R1D1A1B03933125)
Article History
Received: 23 July 2019
Accepted: 14 November 2019
First Online: 9 December 2019
Ethics approval and consent to participate
: The study protocol was approved by the institutional review boards of the 17 hospitals in the Korean Obstructive Lung Disease (KOLD) cohort. Informed consent was obtained from patients.
: Not applicable.
: The authors declare that they have no competing interests.