1. Department of Qi-Medicine, Institute of Biotechnology, Wonkwang University and Department of Microbiology & Immunology, School of Medicine, Wonkwang University, Iksan 570-749, Republic of Korea
2. Department of Nursing, Wonkwang Health Science College, Iksan 570-750, Republic of Korea
3. Department of Physiology, College of Oriental Medicine, Wonkwang University, Iksan 570-749, Republic of Korea