1. Hertfordshire College, Changzhou Institute of Technology, Changzhou, China
2. Department of Nuclear Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China
3. Changzhou NO.2 People's Hospital, Nanjing Medical University, Changhzou, China
4. Department of Nuclear Medicine, First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China