1. Department of Neurosurgery, Moriguchi-Ikuno Memorial Hospital
2. Department of Neurosurgery, Chiari Ehlas Danlos Syndrome Center, Mount Sinai South Nassau, Lake Success
3. Department of Neurosurgery, Osaka Metropolitan University Graduate School of Medicine
4. Department of Pediatric Neurosurgery, Osaka City General Hospital
5. Department of Neurosurgery, Naniwa-Ikuno Hospital