1. Department of Anatomical and Cellular Pathology; State Key Laboratory in Oncology in South China; Prince of Wales Hospital; The Chinese University of Hong Kong; Hong Kong
2. Institute of Digestive Disease; The Chinese University of Hong Kong; Hong Kong
3. Sir Y K Pao Cancer Centre; Li Ka Shing Institute of Health Science; The Chinese University of Hong Kong; Hong Kong
4. Department of Clinical Oncology; State Key Laboratory in Oncology in South China; Prince of Wales Hospital; The Chinese University of Hong Kong; Hong Kong
5. Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; The Chinese University of Hong Kong; Hong Kong