Affiliation: | 1. Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, , Ibaraki, Japan;2. Tsukuba Medical Center, , Ibaraki, Japan;3. Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, , Ibaraki, Japan;4. Laboratory for Respiratory Diseases, Center for Genomic Medicine, The Institute of Physical and Chemical Research (RIKEN), , Kanagawa, Japan;5. First Department of Medicine, Hokkaido University School of Medicine, , Hokkaido, Japan |