1. Department of Surgical and Molecular Pathology, Dokkyo Medical University School of Medicine, Tochigi, Japan
2. Department of Surgical and Molecular Pathology, Dokkyo Medical University School of Medicine, Tochigi, Japan,
3. Department of Surgical and Molecular Pathology, Dokkyo Medical University School of Medicine, Tochigi, Japan, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
4. First Department of Surgery Dokkyo Medical University School of Medicine, Tochigi, Japan