1. Biomedical Science, Department of Medicine, Chung-Ang University Graduate School, Seoul, Korea.
2. Center for Prostate Cancer, Research Institute National Cancer Center, Goyang, Korea.
3. Genitourinary Cancer Branch, Research Institute National Cancer Center, Goyang, Korea.
4. Department of Urology, Chung-Ang University College of Medicine, Seoul, Korea.
5. Department of Pathology, Chung-Ang University College of Medicine, Seoul, Korea.