Takimoto-Sato, Michiko
Suzuki, Masaru
Kimura, Hiroki
Ge, Haiyan
Matsumoto, Munehiro
Makita, Hironi
Arai, Satoko
Miyazaki, Toru
Nishimura, Masaharu
Konno, Satoshi
Funding for this research was provided by:
AMED-LEAP (JP22gm0010006h)
Boehringer Ingelheim Japan
Ministry of Education, Science, and Culture and Sports of Japan
Article History
Received: 24 March 2023
Accepted: 8 August 2023
First Online: 17 August 2023
Declarations
:
: The authors declare no competing interests.
: This clinical study, which included nonsmokers, healthy smokers, and smokers with COPD, was approved by the Ethics Committee of the Hokkaido University Hospital (012–0075). The Hokkaido COPD cohort study was approved by the Ethics Committee of the Hokkaido University School of Medicine (med02-001). Both the studies were conducted in accordance with the principles of the Declaration of Helsinki, and obtained consent for participation from patients.
: We obtained written informed consent from all participants.