1. Department of Pathology and Immunology; Washington University; School of Medicine; St Louis MO USA
2. Department of Pathology and Medical Biology; University Medical Center Groningen; University of Groningen; Groningen the Netherlands
3. Department of Cellular Pathology; Queen Elizabeth Hospital Birmingham; Birmingham UK
4. Laboratory of Histology and Embryology; Medical School; National and Kapodistrian University of Athens; Athens Greece
5. Hopital Beaujon; Service d'Anatomie Pathologique; Clichy France
6. University of Adelaide School of Medicine; South Australia Australia
7. Ospedale Pediatrico Bambino Gesu; Rome Italy
8. Centre for Liver Disease Research; School of Medicine (Southern); University of Queensland; Princess Alexandra Hospital; Woolloongabba Australia
9. Institute of Pathology; Meduniwien; Medical University of Vienna; Wien Austria
10. Center for Liver Diseases; Inova Fairfax Hospital; Falls Church VA USA
11. Division of Gastroenterology, Hepatology and Nutrition; The Hospital for Sick Children; Toronto ON Canada
12. Laboratory of Histo-Cytochem; University Hospital St Rafael; Leuven Belgium
13. Institute of Pathology; University of Basel; Basel Switzerland
14. Johns Hopkins University School of Medicine; Baltimore MD USA
15. Department of Pathology; Dalhousie University; Queen Elizabeth II Health Sciences Centre; Halifax NS Canada