1. Department of Applied Life Science, Kon Kuk University, Seoul, 143-701, South Korea
2. Department of Diagnostics, College of Korean Medicine and Cardiovascular Medical Research Center, Dongguk University, Gyeong-Ju 780-714, South Korea
3. Department of Neuroscience and Inam Neuroscience Research Center, Sanbon Medical Center, Wonkwang University, Gunpo-city, Kyunggido, 435-040, South Korea