1. Department of Respiratory Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan,
2. Department of Respiratory Medicine, KKR Otemae Hospital, Osaka, Japan,
3. Department of Respiratory Medicine, Murakami Memorial Hospital, Asahi University, Gifu, Japan,
4. Department of Genetics and
5. Division of Blood Transfusion, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan, and
6. Department of Respiratory Medicine, Hanna Hospital, Daito, Osaka, Japan