[1] Univ Plymouth, Hepatol Res Grp, Plymouth PL4 8AA, Devon, England
[2] Derriford Hosp, South West Liver Unit, Plymouth PL6 8DH, Devon, England
[3] Univ Glasgow, MRC Univ Glasgow Ctr Virus Res, Glasgow, Lanark, Scotland
[4] Univ Plymouth, Hepatol Res Grp, Plymouth PL4 8AA, Devon, England
[5] Univ Plymouth, Peninsula Sch Med, Plymouth PL4 8AA, Devon, England
[6] Univ Plymouth, Peninsula Sch Dent, Plymouth PL4 8AA, Devon, England