1. Cardiovascular Laboratory, Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
2. Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
3. Department of Physiology and Pharmacology, University of Western Ontario, London, ON N6A‑5C1, Canada