1. Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
2. Department of Neurosurgery, Fuchu Hospital, Izumi, Osaka, Japan
3. Department of Neuromodulation and Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
4. Yu Neurosurgery Clinic, Toyonaka, Osaka, Japan
5. Yamanaka Neurosurgical Rehabilitation Clinic, Osaka, Osaka, Japan