1. Department of Biomedical Engineering; Chung Yuan Christian University; Chung Li Taiwan
2. Department of Anesthesiology; School of Medicine; College of Medicine; Wan Fang Hospital; Taipei Medical University; Taipei Taiwan
3. Department of Neurosurgery; Wan Fang Hospital; Taipei Medical University; Taipei Taiwan
4. Comprehensive Cancer Center; Graduate Institute of Injury Prevention and Control; Taipei Medical University; Taipei Taiwan