1. Department of PathologyNagoya City West Medical Center Nagoya Japan
2. Department of Experimental Pathology and Tumor BiologyGraduate School of Medical Sciences, Nagoya City University Nagoya Japan
3. Department of PathologyAichi Medical University School of Medicine Nagakute Japan
4. Laboratory of Pathology, National Cancer Institute Bethesda USA
5. Gastrointestinal Surgery, Nagoya City West Medical Center Nagoya Japan