1. Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030032, China
2. School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, China
3. CAS Key Laboratory of Carbon Materials, Analytical Instrumentation Center & State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
4. The Radiology Department of First Hospital of Shanxi Medical University, Taiyuan 030001, China