1. Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Co-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmace utical Sciences; Zhengzhou University; Zhengzhou Henan China
2. Department of Internal Medicine-Cardiology; The Second Affiliated Hospital of Zhengzhou University; Zhengzhou Henan P.R. China
3. Department of Internal Medicine-Cardiology; Henan Provincial People's Hospital of Zhengzhou University; Zhengzhou Henan P.R. China