1. Dumont-UCLA (University of California, Los Angeles) Transplant and Liver Cancer Centers, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles
2. Department of Biomathematics, UCLA, Los Angeles
3. Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Salaya, Thailand
4. Department of Anesthesia, David Geffen School of Medicine at UCLA, Los Angeles