1 Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China. yinruixing@163.com.
2 Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China.
3 Graduate School of Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China.