1. Research Department, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
2. Department of Urology, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530199, P.R. China
3. Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada