1. Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea.
2. Medical Research Center for Cancer Molecular Therapy, Dong-A University College of Medicine, Busan, Korea.
3. Department of Pathology, Dong-A University College of Medicine, Busan, Korea.
4. Department of Diagnostic Radiology, Dong-A University College of Medicine, Busan, Korea.
5. Department of Surgery, Dong-A University College of Medicine, Busan, Korea.