1. Division of Pathology, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan.
2. Department of Breast Surgery, National Cancer Center Hospital East, Chiba, Japan.
3. NPO Japanese Organization for Research and Treatment of Cancer, Tokyo, Japan.
4. Department of Palliative Medicine, Saitama Medical University, Saitama, Japan.
5. Murata Manufacturing Co., Ltd., Kyoto, Japan.
6. Department of Hepatobiliary and Pancreatic Surgery, National Cancer Center Hospital East, Chiba, Japan.