1. Asan Image Metrics, Asan Medical Center, Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Republic of Korea
2. Asan Medical Center, Department of Oncology, University of Ulsan College of Medicine, Seoul, Republic of Korea
3. Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Medicine, Northwestern University, Chicago, Illinois
4. University Hospitals Cleveland Medical Center, Department of Radiology, Case Western Reserve University, Cleveland, Ohio