| Turkey | Thailand | South Korea | |
| Gamma Knife | from AUD $7,800 | ≈ AUD $35,400 | from AUD $14,200 |
Professor Ahmet Hilmi Kaya is a premier neurosurgeon at Anadolu Medical Center, specialising in complex skull base tumours and functional neurosurgery.
Professor Ertugrul Pinar specialises in complex skull base surgery at Hisar Hospital Intercontinental, a high-volume tertiary referral centre for neurosurgery.
Associate Professor Mehmet Tonge is a specialist neurosurgeon who focuses on Gamma Knife Radiosurgery – a non-invasive way to treat acoustic neuromas without incisions.
Professor Erhan Arslan is a senior neurosurgeon at VM Medical Park Pendik who specialises in microsurgical techniques for tumours at the base of the skull.