1. Institute for Anatomy and Cell Biology,
2. Institute of Physiology, and
3. Department of Internal Medicine, Justus Liebig University, Giessen, Germany;
4. Department of Obstetrics and Gynecology, Chang Gung University School of Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan, Republic of China;
5. Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea; and
6. Division of Reproductive Biology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California