1. Department of Diagnostic Pathology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama 930‑0194, Japan
2. Third Department of Medicine, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama 930‑0194, Japan
3. Department of Surgery and Sciences, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama 930‑0194, Japan
4. Department of Diagnostic Pathology, Kumagaya General Hospital, Kumagaya, Saitama 360‑8567, Japan