1. Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
2. Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
3. Health School of Nuclear Industry, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
4. Department of Gastrointestinal Surgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China