1. Section of Hepatology & Gastroenterology, Division of Digestive Diseases, Department of Metabolism, Digestion & Reproduction, Imperial College London, London W2 1NY, UK
2. Hepatology Department, Croix Rousse Hospital, Lyon Liver Institute, Hospices Civils of Lyon, 69004 Lyon, France
3. Cancer Research Center of Lyon, INSERM 1052, 69000 Lyon, France
4. University of Lyon, 69000 Lyon, France