1. Department of Medical Science, School of Medicine Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea.
2. Department of Biomedical Laboratory Science, Kyungbok University, Gyeonggi-do 487-717, Korea.
3. Department of Anatomy, College of Korean Medicine, Dongguk University, Gyeongsangbuk-do 780-714, Korea.