1. Department of Pathology, Faculty of Medicine, Toho University, Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
2. Division of Pathology, Cancer Institute, Japanese Foundation for Cancer Research, Ariake, Koto-ku, Tokyo 135-8550, Japan
3. Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
4. Oncology Pathology, Department of Pathology and Host-Defense, Faculty of Medicine, Kagawa University, Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
5. Gastroenterological Center, Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Koto-ku, Tokyo 135-8550, Japan
6. Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
7. Japan Agency for Medical Research and Development, Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
8. Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Koto-ku, Tokyo 135-8550, Japan
9. Department of Pathology, International University of Health and Welfare, Mita, Minato-ku, Tokyo 103-8329, Japan
10. Pathology Project for Molecular Targets, Cancer Institute, Japanese Foundation for Cancer Research, Ariake, Koto-ku, Tokyo 135-8550, Japan