1. Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea
2. Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
3. Division of Interventional Radiology, Department of Radiology, Ronald Reagan Medical Center at UCLA Medical Center, Los Angeles, CA, USA
4. Department of Radiology, King Faisal University College of Medicine, Al-Ahsa, Saudi Arabia