1. Department of Food Science and Nutrition, Hallym University, Chuncheon, Gangwon-do, Korea.
2. Institute of Natural Medicine, College of Medicine, Hallym University, Chuncheon, Gangwon-do, Korea.
3. Department of Pharmacology, College of Medicine, Hallym University, Chuncheon, Gangwon-do, Korea.
4. College of Public Health, Hebei University, Baoding, China.