| Turchia | Austria | Spagna | |
| Terapia con cellule staminali per la malattia di Alzheimer | da $15,000 | da $40,000 | da $20,000 |
Dr. Roberto Martínez Álvarez is the Head of Functional Neurosurgery and Radiosurgery at Ruber International Hospital. He specializes in Gamma Knife and CyberKnife treatments for brain tumors and vascular malformations. He serves on the Executive Council of the International Society of Stereotactic Radiosurgery.
Dr. Oriol Franch heads the neurology departments at two major hospitals in Madrid. He is a specialist in complex diagnostic cases and second medical opinions. Dr. Franch focuses on neuro-ophthalmology, movement disorders, and rare neurogenetic conditions. He works at the JCI-accredited Hospital Ruber Internacional, ranked among Spain's top six hospitals.