1. Department of Pathology; Kurume University School of Medicine; 67 Asahi-machi Kurume Fukuoka 830-0011 Japan
2. Cancer Center; Kurume University Hospital; Kurume Fukuoka Japan
3. Department of Diagnostic Pathology; Kurume University Hospital; Kurume Fukuoka Japan
4. Department of Surgery; Kurume University School of Medicine; Kurume Fukuoka Japan
5. Department of Clinical Laboratory Medicine; Kurume University Hospital; Kurume Fukuoka Japan