1. Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
2. Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
3. Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
4. Department of Nuclear Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
5. Department of Imaging, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
6. Department of Imaging, UH Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA.