1. Department of Nephrology and Division of Clinical Toxicology Chang Gung Memorial Hospital and College of Medicine Chang Gung University Linkou Taiwan
2. Histopathology Laboratory Cancer Research UK London Research Institute London UK
3. Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK
4. Epithelial Stem Cell Group Centre for Tumour Biology Barts Cancer Institute Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK
5. Molecular Pathology Facility National Centre for Bowel Research and Surgical Innovation Centre for Digestive Diseases Blizard Institute Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK
6. Department of Histopathology Imperial College London UK