1. Section of Digestive Diseases; Yale University School of Medicine; New Haven CT
2. Department of Veterinary Pathology, College of Veterinary Medicine; Kyungpook National University; Daegu Republic of Korea
3. Transplantation Surgery Center, Third Xiangya Hospital; Central South University; Changsha P.R. China
4. Department of Internal Medicine, Wonju Severance Christian Hospital; Yonsei University Wonju College of Medicine; Wonju Republic of Korea
5. Department of Pathology, Wonju Severance Christian Hospital; Yonsei University Wonju College of Medicine; Wonju Republic of Korea
6. The Graduate School of Natural Science and Technology; Okayama University; Okayama Japan
7. VA CT Healthcare System; West Haven CT