1. Department of Radiology, School of Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai 200011, China
2. Department of Spinal Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264000, China
3. School of Pharmacy, Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong Province 264003, P. R. China