1 UCL Institute for Liver and Digestive Health, Royal Free Hospital and UCL, London, United Kingdom. Electronic address: emmanouil.tsochatzis@nhs.net.
2 Department of Gastroenterology & Hepatology, University Hospitals Leuven, Leuven, Belgium; Laboratory of Hepatology, Department of Chronic Diseases and Metabolism, KU Leuven, Belgium. Electronic address: jef.verbeek@uzleuven.be.