1. Department of Anatomical Pathology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
2. Department of Pathology and Clinical Laboratories; National Cancer Centre Hospital; Tokyo Japan
3. Department of Pathology; National Kyushu Cancer Center; Fukuoka Japan
4. Department of Pathology; Faculty of Medicine; University of Miyazaki; Kiyotake Japan
5. Department of Pathology; Saga Medical Centre Koseikan; Saga Japan