1. Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chunchon 200-702, Korea
2. Department of Anatomy, College of Medicine, Soonchunhyang University, Cheonan 330-090, Korea
3. Department of Food Science and Nutrition & RIC Center, Hallym University, Chunchon 200-702, Korea
4. School of Life Science and Biotechnology, Korea University, Seoul 136-701, Korea