1. Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
2. Department of Pathology, NTT Medical Center Tokyo, Tokyo 141‑8625, Japan
3. Department of Pathology, The University of Tokyo, Tokyo 113‑8655, Japan
4. Project Division of Cancer Biomolecular Therapy, Institute of Medical Science, The University of Tokyo, Tokyo 108‑8639, Japan