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1Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
2Cancer Research Institute, Seoul National University, Seoul, Korea.
3Center for Genome Science, Korea National Institute of Health, Osong, Korea.
4Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
5Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
6Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.
© 2011, Korean Society of Epidemiology
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