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aDepartment of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
bDivision of Epidemiology & Health Index, Center for Genome Science, Korea Center for Disease Control & Prevention, Seoul, Korea
cCancer Epidemiology Branch, National Cancer Center, Goyang-si, Korea
dDepartment of Preventive Medicine, Konkuk University School of Medicine, Chungju, Korea
eCancer Research Institute, Seoul National University, Seoul, Korea
fInstitute of Health Policy and Management, Seoul National University, Seoul, Korea
Address correspondence to: Sue K. Park, Seoul National University College of Medicine, Department of Preventive Medicine, 28 Yeongeon-Dong, Jongno-Gu, Seoul 110-799, Korea. Tel.: +82-2-740-8338; Fax: +82-2-747-4830.
This work was supported by the National Research and Development Program for Cancer Control, Ministry of Health & Welfare, Republic of Korea (grant number 0220180-3) and the Center for Genome Science, Korea, National Institute of Health (research contract 2007-E00004-00).