1. Department of Medical Biochemistry and Immunology University Hospital of Wales Cardiff, UK
2. Directorate of Gastroenterology and Hepatology Royal Liverpool University Hospital Liverpool, UK
3. University of Manchester Medical School Manchester Academic Health Science Centre Manchester, UK
4. Department of Clinical Biochemistry Salford Royal NHS Foundation Trust Salford, UK
5. Biochemistry Department St. James's Hospital Dublin, Ireland
6. Institute of Molecular and Experimental Medicine School of Medicine Cardiff University Cardiff, UK