1. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
2. Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.
3. Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University, Seoul, Korea.
4. Research Center, Bifido Inc., Seoul, Korea.
5. Department of Hotel Culinary Arts, Anyang Science University, Anyang, Korea.