1. Division of Dermatology, Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
2. Division of Gastroenterology and Hepatology, Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
3. Imaging and Interventional Radiology Centre, CUHK Medical Centre, Hong Kong SAR, China
4. Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
5. Department of Radiology, Queen Mary Hospital, Hong Kong SAR, China; St Vincent’s Hospital, Sydney, Australia