1. Department of Human Pathology, School of Medicine, Juntendo University, 1-1-19 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
2. Pharmaceutical & Healthcare Research Laboratories Research & Development Management Headquarters, FujiFilm Corporation, 577 Ushizima, Kaisei-cho, Ashigarakami-gun, Kanagawa 258-8577, Japan
3. Department of Oncology Clinical Development, Graduate School of Medicine, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan