1. Department of Pharmacy, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710077, P.R. China
2. Department of Pharmacology, College of Pharmacy of Xi'an Medical University, Xi'an, Shaanxi 710061, P.R. China
3. Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710077, P.R. China