1. Institute of Clinical Medicine; Department of Pediatrics; University of Oulu; Oulu Finland
2. Medical Research Center, Oulu University Hospital, University of Oulu; Oulu Finland
3. Division of Transplantation and Liver Surgery; Helsinki University Central Hospital; Helsinki Finland
4. Department of Pathology; University of Helsinki; Helsinki Finland
5. Department of Neurology; Kuopio University Hospital; Kuopio Finland
6. Institute of Clinical Medicine; School of Medicine, Faculty of Health Sciences, University of Eastern Finland; Kuopio Finland
7. Department of Pathology; Turku University Hospital, University of Turku; Turku Finland
8. Institute of Clinical Medicine; Department of Neurology; University of Oulu; Oulu Finland