1. Wakefield Surgical Clinic, Florence Street, Wellington 2, New Zealand
2. Institut de Diagnòstic per la Imatge (IDI) Centre Bellvitge, Hospital Duran i Reynals Autovia de Castelldefels km 2,7 L'Hospitalet de Llobregat, 08 907 Barcelona, Spain
3. Liver Transplantation Unit, Ciutat Sanitària i Universitària de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
4. Department of Surgery, North Hampshire Hospital, Aldermaston Road, Basingstoke RG24 9NA, UK
5. Department of Radiology, North Hampshire Hospital, Aldermaston Road, Basingstoke RG24 9NA, UK