1. Department of Pathology, Tenri Hospital, Nara,
2. Department of Pathology and Clinical Laboratories, Aichi Cancer Center Hospital, Nagoya,
3. Department of Pathology, Institute of Medical Science, University of Tokyo,
4. Laboratory of Chemotherapy, Aichi Cancer Center Research Institute, Nagoya,
5. Laboratory of Anatomic Pathology, Kyoto University Hospital, Kyoto, Japan