1 Department of Cardiovascular Medicine, The Second Affiliated Hospital of University of South China, Hengyang, Hunan, China.
2 Department of Anesthesiology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan, China.
3 Department of Cardiovascular Medicine, The Second Affiliated Hospital of University of South China, Hengyang, Hunan, China. Electronic address: 2379795177@qq.com.
4 Department of Histology and Embryology, Guilin Medical University, Guilin, Guangxi, China. Electronic address: zzhcsu@163.com.