1. Department of Biochemistry and Institute for Medical Sciences, Chonbuk National University Medical School, Jeonju 560-182, Korea.
2. Department of Dermatology, Chonbuk National University Medical School, Jeonju 560-182, Korea.
3. Department of Obstetrics and Gynecology, Chonbuk National University Medical School, Jeonju 560-182, Korea.
4. Department of Physiology, School of Oriental Medicine, Wonkwang University, Iksan 570-749, Korea.
5. Department of Companion and Laboratory Animal Science, Kongju National University, Yesan 340-702, Korea.
6. Division of Animal Science and Resources Research Center for Transgenic Cloned Pigs, Chungnam National University, Daejeon 305-764, Korea.