1. Research Institute of Insurance and Finance, Samsung Life Insurance, Seoul, Korea.
2. Department of Family Medicine, Center for Health Promotion and Clinical Research Center, Ilsan-Paik Hospital, College of Medicine, Inje University, Goyang, Korea.
3. Department of Food & Nutrition, Shingu College, Seongnam, Korea.
4. Department of Health Industry & Policy, Korea Health Industry Development Institute, Osong, Korea.
5. Center for Obesity, Nutrition, and Metabolism, Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Korea.