1. Laboratory of Molecular Disease and Cell Regulation, Department of Molecular Medicine, School of Medicine, Gachon University, Incheon 406-840, Korea
2. Department of Surgery, Kangnam Severance Hospital, Yonsei University, Kangnam, Seoul 146-92, Korea
3. CHA Cancer Institute, CHA University, Seongnam-si, Kyunggi-do 463-400, Korea
4. Gachon Medical Research Institute, Gil Medical Center, Gachon University, Incheon 405-760, Korea