Affiliation: | 1.National Research Laboratory for Cancer Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul 110-744, Korea.;2.Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-744, Korea.;3.Department of Radiation Medicine, Georgetown University Medical Center, Washington, DC 20007, USA.;4.Present address: Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. |