1. Department of Pathology, Teikyo University Hospital
2. Department of Pathology, Saitama Red Cross Hospital
3. Department of Gastroenterology and Hepatology, Department of Internal Medicine, Saitama Red Cross Hospital
4. Department of Surgery, Saitama Red Cross Hospital
5. Department of Molecular Pathology, Graduate School of Health Care Sciences, Tokyo Medical and Dental University
6. Department of Pathology, Teikyo University School of Medicine
7. General Medical Education and Research Center, Teikyo University