1. Undergraduate student; The University of Tokushima School of Medicine; Tokushima Japan
2. Department of Human Pathology; Institute of Health Biosciences; The University of Tokushima Graduate School; Tokushima Japan
3. Department of Gastroenterology and Oncology; Institute of Health Biosciences; The University of Tokushima Graduate School; Tokushima Japan
4. Undergraduate student; Faculty of Pharmaceutical Sciences; The University of Tokushima; Tokushima Japan
5. Department of Cell Pathology; Graduate School of Medical Sciences; Kumamoto University; Kumamoto Japan