Dr Kosei Hasegawa
| Area | saitama |
| Medical institution affiliation | Saitama Medical University International Medical Center https://www.saitama-med.ac.jp/simc/fujinshuyo/staff/ |
| Medical specialties | Gynecologic Oncology |
| Medical expertise | Gynecologic oncology (ovarian, cervical, and uterine cancer), cancer drug therapy |
| Graduated University | Okayama University |
