1. Department of Respiratory Medicine, Japanese Red Cross Nagasaki Genbaku Hospital, Japan
2. Clinical Oncology Center, Nagasaki University Hospital, Japan
3. Department of Hematology Medicine, Japanese Red Cross Nagasaki Genbaku Hospital, Japan
4. Department of Pathology, Japanese Red Cross Nagasaki Genbaku Hospital, Japan
5. Department of Respiratory Medicine, Tochigi Cancer Center, Japan
6. Second Department of Internal Medicine, Nagasaki University Hospital, Japan