1. Department of Biomedical Engineering and Research Institute of Biomedical Engineering, College of Medicine, Catholic University of Korea, Seoul, Korea
2. Department of Radiation Oncology, University of Florida, Gainesville, FL, USA
3. Department of Biomedical Engineering, J. Crayton Pruitt Family, University of Florida, Gainesville, FL, USA
4. Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA