1. Department of Medical Technology, Faculty Health Sciences, Kyorin University, Tokyo, Japan.
2. Department of Immunological Diagnosis, Graduate School of Medicine, Juntendo University, Tokyo, Japan.
3. Department of Pathology, Oncology and School of Medicine, Juntendo University, Tokyo, Japan.
4. Department of Human Pathology, School of Medicine, Juntendo University, Tokyo, Japan.
5. Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan.