1. Department of Pathology; Kurume University School of Medicine; Kurume Japan
2. Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
3. Division of Gastroenterology, Department of Medicine; Kurume University School of Medicine; Kurume Japan
4. Department of Diagnostic Pathology; St. Mary's Hospital; Kurume Japan
5. Department of Pathology and Laboratory Medicine; Kurume University Medical Center; Kurume kurume Japan