1. Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
2. Department of Interventional Radiology, The Second Affiliated Hospital of Guizhou Medical University, Kaili, Guizhou 556000, P.R. China
3. Department of General Courses, People's Armed College of Guizhou University, Guiyang, Guizhou 550025, P.R. China
4. School of Medical Imaging, Guizhou Medical University, Guiyang, Guizhou 550002, P.R. China
5. Key Laboratory of Molecular Biology, Guizhou Medical University, Guiyang, Guizhou 550002, P.R. China