1. Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan
2. Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan
3. Department of Medical Research, Mackay Memorial Hospital, Tamshui 25160, Taiwan
4. Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
5. Priority Research Centre for Reproduction, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia
6. Department of Physiology, Institute of Biomedicine, University of Turku, Turku 20520, Finland