1. Division of Endocrine Surgery, Kanagawa Cancer Center Hospital, Yokohama, Japan.
2. Department of Pathology, Kanagawa Cancer Center Hospital, Yokohama, Japan.
3. Molecular Pathology and Genetics, Kanagawa Cancer Center Research Institute, Yokohama, Japan.
4. Cancer Prevention and Cancer Control Divisions, Kanagawa Cancer Center Research Institute, Yokohama, Japan.
5. Department of Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan.
6. Department of Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.