| 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.
Principal investigator in 100+ clinical trials for neurological disorders – Dr. Arroyo leads research at Quironsalud Madrid.
Dr. Oriol Franch is Head of Neurology at Hospital Ruber Internacional. He also leads the Neurology Service at Hospital La Luz (Madrid). He is a senior neurologist focused on complex diagnostic cases and second opinions. His specialties include neuro-ophthalmology, movement disorders (including Parkinson’s), neuromuscular diseases, and rare neurogenetic conditions.
He is a member of the Spanish Society of Neurology (SEN), the American Academy of Neurology (AAN), and the European Neurological Society (ENS). He has authored peer-reviewed articles on neuromuscular, neurodegenerative, genetic, toxic, and movement disorders. His work has been published in Acta Neuropathologica, Journal of Neurology, Journal of Neurology, Neurosurgery & Psychiatry, and Parkinsonism & Related Disorders.