1. Department of Life Science, Sogang University, Seoul, Korea.
2. Department of Genetic Epidemiology, SNP Genetics, Inc., Seoul, Korea.
3. Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Osong Health Technology Administration Complex, Osong, Korea.
4. Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Osong Health Technology Administration Complex, Osong, Korea.