1. Changchun University of Chinese Medicine, Changchun, P.R. China
2. Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
3. Department of Urology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
4. School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, P.R. China