1Department of Gastroenterology, Daping Hospital, Army Medical University, Chongqing, People’s Republic of China;
2Department of Nuclear Medicine, Daping Hospital, Army Medical University, Chongqing, People’s Republic of China;
3Department of Gastroenterology, People’s Hospital of Chongqing Hechuan, Chongqing, People’s Republic of China;
4Department of Medical Engineering, Xinqiao Hospital, Army Medical University, Chongqing, People’s Republic of China;
5College of Biomedical Engineering and Imaging Medicine, Army Medical University, Chongqing, People’s Republic of China;
6Department of Internal Medicine, 63790 Military Hospital of the Chinese People’s Liberation Army, Xichang, People’s Republic of China;
7Department of Infectious Disease, Taikang Tongji Hospital, Wuhan, People’s Republic of China;