Affiliation: | a Department of Pathology, Seoul National University College of Medicine, Seoul 110-799, Korea b Cancer Research Institute, Seoul National University College of Medicine, Seoul 110-799, Korea c Department of Pathology, Seoul National University Bundang Hospital, Gyeonggi 463-707, Korea d Department of Surgery, Seoul National University College of Medicine, Seoul 110-799, Korea e Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea |