1. Graduate Institute of Life Sciences, National Defense Medical Center (NDMC), Taipei 114, Taiwan
2. Regenerative Medicine Research Group, Institute of Cellular & System Medicine, National Health Research Institutes (NHRI), Zhunan 350, Taiwan
3. National Institute of Cancer Research, NHRI, Zhunan 350, Taiwan
4. Department of Obstetrics/Gynecology, National Taiwan University (NTU) Hospital & College of Medicine, Taipei 100, Taiwan