1 Liver Failure Group, Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK. Electronic address: r.jalan@ucl.ac.uk.
2 Liver Failure Group, Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK.
3 EF-CLIF and EASL-CLIF Consortium, Barcelona, Spain.