1. Department of Pathology & Laboratory Medicine, Division of Gastroenterology, the Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan
2. Department of Radiology, Division of Gastroenterology, the Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan
3. Department of Medicine, Division of Gastroenterology, the Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan
4. Department of Research, the Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan