1. Division of Orthopaedics and Traumatology, Department of Surgery, Dr. Sardjito General Hospital, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia
2. Division of Rehabilitation, Department of Surgery, Dr. Sardjito General Hospital, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia
3. Department of Neurology, Dr. Sardjito General Hospital, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia