Dr. Seiji Udagawa
| Area | Tokyo Metropolis |
| Medical institution affiliation | Toranomon Hospital Kajigaya https://toranomon.kkr.or.jp/cms/kajigaya/index.html |
| Medical specialties | digestive surgery |
| Medical expertise | multidisciplinary treatment of oesophageal and gastric cancer with surgery, chemotherapy and radiotherapy |
| Graduated University | University of Tokyo |
