1. Department of Surgery, Division of Gastroenterological, Hepato‐Biliary‐Pancreatic, Transplantation and Pediatric Surgery Shinshu University School of Medicine Matsumoto Japan
2. Department of Laboratory Medicine Shinshu University Hospital Matsumoto Japan
3. Department of Laboratory Medicine Shinshu University School of Medicine Matsumoto Japan
4. Department of Clinical Laboratory Sciences, School of Health Sciences Shinshu University Matsumoto Japan