Doctors' Profile
Takao Itoi, MD
Chair and Professor of Department of Gastroenterology and Hepatology, Tokyo Medical University
1991 Tokyo Medical University, Awarded the bachelor’s degree
1991 Resident of Tokyo Medical University
1993 Research Fellow of 1st Department of Pathology, Niigata University
2010 Associate Professor of Department of Gastroenterology and Hepatology, Tokyo Medical University
2010 Visiting Professor, Nanjing University School of Medicin
2015 Visiting Professor of Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University
2016 Visiting Professor (part-time) of Department of Gastroenterology and Hepatology, Keio University
2016 Chair and Professor of Department of Gastroenterology and Hepatology, Tokyo Medical University
Shomei Ryozawa, MD
Professor and Chairman, Department of Gastroenterology, Saitama Medical University International Medical Center
1991 Awarded M.D. of Yamaguchi University School of Medicine
1991 Resident in Internal Medicine, Yamaguchi University Hospital
1994 Research Fellow of 1st Department of Pathology, Niigata University (Prof. Hidenobu Watanabe)
1997 Awarded PhD. of Yamaguchi University Graduate School of Medicine
2000 Trainee in Department of Interdisciplinary Endoscopy, University Hospital, Hamburg-Eppendorf (Prof. Nib Soehendra)
2001 Medical Staff in Department of Gastroenterology and Hepatology, Kokura Memorial Hospital, Fukuoka
2003 Assistant Professor in Department of Gastroenterology and Hepatology, Yamaguchi University Hospital
2007 Associate Professor in Department of Gastroenterology and Hepatology, Yamaguchi University Hospital
2010 Visiting Professor, Nanjing University School of Medicine
2011 Associate Professor in Digestive Disease Center, Showa University Northern Yokohama Hospital
2013 Professor and Chairman, Department of Gastroenterology, Saitama Medical University international Medical Center
2014 Director, Endoscopy Center, Saitama Medical University International Medical Center
Hiroyuki Isayama, MD
Professor, Department of Gastroenterology, Graduate School of Medicine, Juntendo University
1992 Jikei University School of Medicine awarded M.D.
1992 Japanese Red Cross Medical Center, Resident of Internal Medicine
1994 Japanese Red Cross Medical Center, Senior Resident of Gastroenterology
1997 University of Tokyo Hospital, 2nd Dept. of Internal Medicine
1999 Mitsui Memorial Hospital, Dept. of Gastroenterology
2001 University of Tokyo Hospital, Dept. of Gastroenterology
2002 Post-graduate school, University of Tokyo, awarded Ph.D.
2004 Assistant Professor, Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo
2012 Associate Professor, Department of Gastroenterology, Training Program for Oncology Professionals, Graduate School of Medicine, University of Tokyo
2013 Part-time Lecturer, School of Medicine, Wakayama Medical University
2013 Associate Professor, Department of Gastroenterology, Graduate School of Medicine, University of Tokyo
2013 Deputy Section Chief, Department of Gastroenterology, Graduate School of Medicine, University of Tokyo
2017 Senior Associate Professor, Department of Gastroenterology, Graduate School of Medicine, Juntendo University
2017 Special instructor, Department of Gastroenterology, Okinawa Prefectural Hospitals
2017 Professor, Department of Gastroenterology, Graduate School of Medicine, Juntendo University
Akio Katanuma, MD
Director, Center for Gastroenterology Teine-Keijinkai Hospital
1991 Sapporo Medical University awarded M.D.
1991 Department of Gastroenterology and Hepatology, Sapporo Medical University
1992 Department of Gastroenterology and Hepatology, Muroran City General Hospital
1994 Department of Hematology, Teine Keijinkai Hospital
1997 Center for Gastroenterology Teine Keijinkai Hospital
2015 Deputy Director, Center of Gastroenterology Teine Keijinkai Hospital
2017 Visiting Professor of Department of Gastroenterology and Hepatology, Tokyo Medical University
2018 Director, Center for Gastroenterology Teine Keijinkai Hospital
Ichiro Yasuda, MD
Director and Professor, Third Dept. of Internal Medicine, University of Toyama
1990 Awarded M.D. of Gifu University, Japan
1991 Resident, Department of Gastroenterology, Gifu Municipal Hospital
1992 Clinical Fellow, Dept. of Internal Medicine, Fujita Health Hospital, Japan (Prof. Saburo Nakazawa)
1993 Medical Staff, Department of Gastroenterology, Gifu Municipal Hospital, Japan
1998 Medical Staff, First Dept. of internal Medicine, Gifu University Hospital, Japan
2002 Trainee in Department of Interdisciplinary Endoscopy, University Hospital Hamburg-Eppendorf (Prof. Nib Soehendra)
2003 Medical Staff, First Dept. of internal Medicine, Gifu University Hospital, Japan
2004 Assistant Professor, Div. of Endoscopy, Gifu University Hospital, Japan
2005 Clinical Lecturer, First Dept. of internal Medicine, Gifu University Hospital, Japan
2006 Concurrent Lecturer, First Dept. of internal Medicine, Gifu University Hospital, Japan
2008 Lecturer, First Dept. of internal Medicine, Gifu University Hospital, Japan
2012 Associate Professor, First Dept. of Internal Medicine, Gifu University Hospital, Japan
2014 Director and Professor, Department of Gastroenterology, Teikyo University Mizonokuchi Hospital
2018 Director and Professor, Third Department of Internal Medicine, University of Toyama, Jap
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