1. Department of Abdominal Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
2. Department of Gastroenterology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
3. Clinical Nutrition Unit, Department of Internal Medicine and Rehabilitation, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
4. Department of Abdominal Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
5. Department of Vascular Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
6. Department of Transplantation and Liver Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
7. Departments of Abdominal Surgery and Transplantation and Liver Surgery
8. Helsinki University Hospitaland University of Helsinki Haartmaninkatu 4 00029 Helsinki Finland