Masaki Nagaya. Education: 1988-1994 MD; St. Marianna University School of Medicine. 1996-2000 PhD; (Medical Science) Department of Surgery, Gastroenterological Surgery, Graduate School, St. Marianna University School of Medicine. Postdoctoral Training: 2004-2005 Research Fellow, Department of Pathophysiology, Cancer Research Institute, Sapporo Medical University School of Medicine. 2006-2009 Research Fellow, Section on Islet Transplantation and Cell Biology, Joslin Diabetes Center, Harvard Medical School. 2008-2009 Transplantation Surgery Massachusetts General Hospital, Harvard Medical School. Licensure and Certification: 2002-present Board Certified Surgeon in Surgery (Japan). 2005-present Board Certified Surgeon in Gastroenterology (Japan). Board Certified physician in the Japanese Association for Acute Medicine (Japan).