Affiliation: | (1) Endocrine Laboratory, Yonsei University, 120-752 Seoul, South Korea;(2) Department of Pharmacology, College of Medicine, Yonsei University, 120-752 Seoul, South Korea;(3) Department of Molecular Biology and Research Center for Cell Differentiation, College of Natural Sciences, Seoul National University, Seoul, South Korea;(4) Laboratory of Histology, Department of Medicine, Cheju National University, 690-756 Cheju, South Korea |