Dr. Tsuyuguchi Toshio
| Prefecture | Chiba Prefecture |
| Belonging | Chiba Prefectural Sawara Hospital https://www.pref.chiba.lg.jp/sawara/shinryoka/shokakika/shinryo.html |
| Specialized | gastroenterology |
| Experienced | general gastroenterology, biliary diseases, endoscopic diagnosis and treatment |
| Graduated University | Chiba University |
