1. Department of Respiratory Medicine, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
2. Department of Anatomic Pathology, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
3. Division of Diagnostic Pathology Kyushu University Hospital Fukuoka Japan
4. Department of Pathology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences Okayama Japan