Corresponding Author

Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea

Correspondence

Sung Sil Park, M.D. Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, South Korea 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10408, Republic of Korea Email: 51873@ncc.re.kr Tel: +82-31-920-0893 Fax: +82-31-920-2797