1. Department of Pulmonary Medicine, Allergy and Rheumatology, Iwate Medical University School of Medicine, Morioka, Japan
2. Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
3. Department of Cancer Biology, Iwate Medical University, Shiwa, Japan
4. Division of Diagnostic Pathology, Itabashi Chuo Medical Center, Tokyo, Japan
5. Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
6. Department of Pathology, Iwate Medical University School of Medicine, Morioka, Japan