1. School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
2. Institute of Biopharmaceuticals, Anhui Medical University, Hefei, Anhui, China
3. The 4th Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
4. Center for Biomedical Engineering and Technology, University of Maryland, Baltimore, MD, USA
5. Actuarial Science, School of Continuing Education, Columbia University, New York, NY, USA