1. College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, South Korea
2. College of Korean Medicine, Daegu Haany University, Gyeongsan, 712-715, South Korea
3. College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Sangnok-gu, Ansan 426-791, South Korea