1. Department of Internal Medicine, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.
2. Department of Hemato-oncology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea.
3. Department of Radiology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.
4. Department of Pathology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.
5. Piedmont Transplant Institute of Atlanta, Atlanta, GA, USA.