1. Department of General Internal MedicineAso Iizuka Hospital, Iizuka, Japan
2. Department of Pathology, Aso Iizuka Hospital, IizukaJapan
3. Department of Medicine and Biosystemic, Science, Graduate School of Medical Sciences
4. Department of Medical Education, Faculty of Medical Sciences Kyushu University, Fukuoka, Japan
5. Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University
6. Department of Pathology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
7. Division of Respirology, Neurology and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan