1. Centre for Biomedical Engineering, Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, China.
2. Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China.
3. Department of Mechanical Engineering, University of Washington, Seattle, Washington.
4. Center for Reproductive Medicine, The Affiliated Hospital of Anhui Medical University, Hefei, China.