1. Department of Pathophysiology, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
2. Medical Experimental Center, The First People's Hospital of Nanning, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530022, P.R. China
3. Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China