1. Division of Oncology, Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea.
2. Rhematism Research Center, Catholic Institute of Medical Sciences, The Catholic University of Korea, Seoul, Korea.
3. Catholic Hematopoietic Stem Cell Transplantation Center, The Catholic University of Korea, Seoul, Korea.
4. Department of Radiation Oncology, The Catholic University of Korea, Seoul, Korea.