1 Academic Unit of Gastroenterology, Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield S10 2RX, UK; Academic Department of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK. Electronic address: suneil.raju@nhs.net.
2 Hepatology Department, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
3 Department of Clinical and Experimental Medicine, University of Sussex, Brighton, UK.
4 Department of Gastroenterology and Hepatology, Surrey and Sussex Healthcare NHS Trust, Redhill, UK.