Dr. Dai Maruyama
| Area | Tokyo Metropolis |
| Medical institution affiliation | The Cancer Institute Hospital of JFCR https://www.jfcr.or.jp/hospital/department/clinic/disease/blood/staff.html |
| Medical specialties | haemato-oncology |
| Medical expertise | diagnosis and treatment of lymphoma and myeloma |
| Graduated University | Jikei University School of Medicine |
