1. Department of Nuclear Medicine, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
2. Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
3. Department of Nuclear Medicine, The Second Affiliated Hospital of Army Medical University, Chongqing 400037, P.R. China
4. Department of Nuclear Medicine, Chongqing General Hospital, Chongqing 401147, P.R. China
5. Department of Nuclear Medicine, The First Hospital Affiliated to Army Medical University, Chongqing 400038, P.R. China