1. Department of Internal Medicine, Kangwon National University, Chuncheon, Korea.
2. Department of Nutrition & Dietetics, University of North Dakota, Grand Forks, ND, USA.
3. Department of Public Health, Food Studies and Nutrition, Syracuse University, Syracuse, NY, USA.
4. Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA.