1 Department of Radiology, Zigong First People's Hospital, Zigong, Sichuan, 643000, PR China; Department of Nuclear Medicine, The Affiliated Hospital Southwest of Medical University, Luzhou, Sichuan, 646000, PR China. Electronic address: [email protected].
2 Department of Radiology, Zigong First People's Hospital, Zigong, Sichuan, 643000, PR China.