Matthew J Armstrong1, Giulio Marchesini2. 1. Liver Unit, Queen Elizabeth University Hospital Birmingham, Birmingham, UK; NIHR Biomedical Research Centre, Centre for Liver Research, University of Birmingham, Birmingham, UK. Electronic address: mattyarm2010@googlemail.com. 2. Unit of Metabolic Diseases & Clinical Dietetics, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.