1 Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, 500-757, Republic of Korea.
2 Section of Endocrinology, Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Taegu, Republic of Korea.
3 Department of Pathology, College of Medicine, ChungnamNational University, Daejeon, 301-131, Republic of Korea.
4 Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Science, Seoul National University, Seoul, Republic of Korea.