1. Department of Cardiology, Institute of Cardiovascular Diseases, the First Affiliated Hospital, China
2. Department of Pathophysiology, School of Premedical Sciences, China
3. The First Affiliated Hospital, Guangxi Medical University, Nanning, China
4. Guangxi Medical Scientific Research Center, Nanning, China
5. The Health Bureau of Napo County, Guangxi Zhuang Autonomous Region, Napo, Guangxi, China