Bae, Eunmi
Choi, Sang-Eun http://orcid.org/0000-0003-3111-1144
Lee, Haeyoung
Shin, Gyeongseon
Kang, Daewon
Funding for this research was provided by:
Boehringer Ingelheim
National Research Foundation (NRF-2017R1A2B1003846)
Article History
Received: 16 January 2019
Accepted: 16 March 2020
First Online: 23 March 2020
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board (IRB) at the pulmonary divisions of three educational hospitals in Seoul, Korea (approval numbers: ED14144; KUGH14146; KC14QIMI0470), and all patients were informed about the study and consented to participate by signing the form recommended by the IRBs.
: Not applicable.
: The authors declare that they have no competing interests.