1. Department of Diagnostic Pathology, Shizuoka Cancer Center, Sunto‑gun, Shizuoka 411‑8777, Japan
2. Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Chiba 271‑8587, Japan
3. Department of Pathology, Wakayama Medical University School of Medicine, Wakayama 641‑8509, Japan