| Turkey | Austria | Spain | |
| Stem cell therapy for Alzheimer's disease | from $15,000 | from $40,000 | from $20,000 |
180+ publications and 230 speaking engagements – Dr. Martínez Álvarez is a renowned neurosurgeon specializing in functional neurosurgery at Hospital Ruber Internacional.
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.
Principal investigator in 100+ clinical trials for neurological disorders – Dr. Arroyo leads research at Quironsalud Madrid.