1. Department of Immunology and Institute of Medical Sciences, Chonbuk National University Medical School, Jeonju 561-756, Korea.
2. Department of Obstetrics and Gynecology, Chonbuk National University Medical School, Jeonju 561-756, Korea.
3. Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Iksan 570-749, Korea.