1. Department of Radiology, Affiliated Hospital of Guilin Medical University, NO.12 Lequn Road, Xiufeng District, Guilin
City, Guangxi 541001, People’s Republic of China
2. Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning City, Guangxi 530021, People’s Republic of China
3. Department of Radiology, Guilin People’s Hospital, Guilin, Guangxi 541000, People’s Republic of China
4. Department of Radiology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, People’s Republic of China