| Affiliation: | 1. Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan;2. National Hospital Organization Ibarakihigashi National Hospital, Naka-gun, Ibaraki, Japan;3. Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan;4. Division of Respiratory Medicine, Hitachi Hitachinaka General Hospital, Tsukuba, Ibaraki, Japan;5. Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan |
