| Turkey | Austria | Spain | |
| Tomotherapy | from $12,000 | from $30,000 | from $35,000 |
| Radiation therapy for brain tumor | from $2,000 | from $15,000 | from $20,000 |
| Proton-beam therapy | from $70,000 | from $80,000 | from $25,790 |
| Gamma Knife for brain tumor | from $4,750 | from $25,000 | from $20,000 |
| Gamma Knife | from $6,300 | from $32,000 | from $18,000 |
Head of Functional Neurosurgery and Radiosurgery at Ruber International Hospital. With over 180 publications, Dr. Martínez Álvarez is a leader in stereotactic radiosurgery for brain tumors.
Head of the Department of Neurosurgery at HM Hospitales Clinic – Dr. Diamantopoulos Fernández leads a specialized team in brain tumor care.
The doctor is a pediatric oncologist with 37 years of experience, specializing in the treatment of blood disorders and performing procedures like bone marrow transplants and ablation therapy. The doctor is currently the Head of Paediatric Haemato-Oncology at Quironsalud Madrid University Hospital.
With a prolific academic record, the doctor has edited 14 books, contributed to 75 book chapters, and presented at over 200 conferences. The doctor is a member of several professional associations, including the Spanish Association of Paediatric Haematology and the Spanish Association of Paediatric Oncology.
The doctor treats a wide range of conditions, including leukemia, lymphoma, multiple myeloma, and various hematological and autoimmune disorders.