1. Department of Diagnostic Pathology Kobe University Graduate School of Medicine KobeJapan
2. Deparment of Pediatric Surgery Kobe University Graduate School of Medicine Kobe Japan
3. Department of Pathology, Asan Medical Center University of Ulsan College of Medicine Seoul Korea
4. Department of Gastrointestinal Surgery Kobe University Graduate School of Medicine KobeJapan
5. Department of Hepato‐Biliary‐Pancreatic Surgery Kobe University Graduate School of Medicine Kobe Japan
6. Institute of Liver Studies King’s College Hospital & King's College London London UK