1. School of Biomedical Engineering and Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
2. School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
3. Department of Radiology, Xianning Central Hospital, the First Affiliated Hospital of Hubei University of Science and Technology, Xianning, P.R. China
4. Department of Mathematics and Statistics, Hubei University of Science and Technology, Xianning, PR China