1. Department of Radiology, Ewha Womans University College of Medicine, Seoul, Korea.
2. Department of Radiology, Yonsei University College of Medicine, Seoul, Korea.
3. Division of Artificial Intelligence and Software, College of Engineering, Ewha Womans University, Seoul, Korea.
4. Division of Biomedical Engineering, Hankuk University of Foreign Studies, Yongin, Korea.
5. Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea.