1. State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
2. State Key Laboratory of Chemical Biology, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
3. Radiology Department, the First Hospital of Jilin University, Changchun 130021, China