| Turkey | Austria | Spain | |
| Craniotomy | from $8,900 | ≈ $18,000 | from $32,500 |
Head of Functional Neurosurgery at Ruber International Hospital since 2005 – Dr. Martínez Álvarez specializes in complex neurological conditions.
Head of the Department of Neurosurgery at HM Hospitales Clinic – leading expertise in complex neurological conditions.
Dr. Luis Madero is the Head of Pediatric Hemato-Oncology at Quironsalud Madrid University Hospital. He specializes in treating complex blood disorders and performing bone marrow transplants. Dr. Madero serves as a Professor of Pediatrics at the Autonomous University of Madrid. He works at Quironsalud Madrid, which Newsweek ranked among the World's Best Hospitals.