1. Radiological Cancer Medicine, University of Science and Technology, Daejeon, Korea.
2. Research Center for Radiotherapy, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.
3. Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.
4. Department of Nuclear Engineering, Hanyang University, Seoul, Korea.
5. Division of Methodology for Quality of Life, Korea Research Institute of Standards and Sciences, Daejeon, Korea.