[1] Univ Oxford, Nuffield Dept Surg Sci, Oxford, England
[2] Univ Leeds, Fac Biol Sci, Leeds, W Yorkshire, England
[3] Univ Manchester, Div Cell Matrix Biol & Regenerat Med, Manchester, Lancs, England
[4] Santersus AG, Zurich, Switzerland
[5] Belgian Volit SRL, Isnes, Belgium
[6] Univ Oxford, Dept Engn Sci, Oxford, England
[7] Royal Free Hosp NHS Trust, Sheila Sherlock Liver Ctr, London, England