1 Department of Pediatrics, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.
2 Department of Nuclear Medicine, Affiliated Hospital of Southwest Medical University/Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, No 25 TaiPing St, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China.
3 Department of Nuclear Medicine, Affiliated Hospital of Southwest Medical University/Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, No 25 TaiPing St, Jiangyang District, Luzhou, 646000, Sichuan, People's Republic of China. zhangwscd@163.com.