1. Department of Radiation Sciences, Radiation Physics, Biomedical Engineering, Umeå University, Umeå, Sweden
2. Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio
3. Department of Neurosurgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
4. Department of Biomedical Engineering, School of Medicine, Case Western Reserve University, Cleveland, Ohio
5. Department of Mechanical and Industrial Engineering and Department of Bioengineering, Northeastern University, Boston, Massachusetts
6. Department of Neurosurgery, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China