1. Department of Neurosurgery, Medical Faculty, Mataram University, General Province West Nusa Tenggara Hospitals, Mataram, Indonesia.
2. Department of Neurosurgery, Udayana University Hospital, Medical Faculty of Udayana University, Bali, Indonesia
3. Department of Neurosurgery, Faculty of Medicine, Mataram University, General Province West Nusa Tenggara Hospitals, Mataram, Indonesia.
4. Department of Anatomy, Medical Faculty, Mataram University, General Province West Nusa Tenggara Hospitals, Mataram, Indonesia.
5. Department of Pathology Anatomy, Medical Faculty, Mataram University, General Province West Nusa Tenggara Hospitals, Mataram, Indonesia.
6. Research Unit, Faculty of Medicine, Udayana University, Bali, Indonesia
7. Research Unit, Faculty of Medicine, Al Azhar Islamic University, Mataram, Indonesia