1. Guangdong Key Laboratory of Urology, Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
2. Department of Urology, Turin University of Studies, Turin, Italy.
3. Department of Urology, Guizhou Provincial People's Hospital, Guizhou, China.
4. Department of Urology, Puning People's Hospital, Guangdong, China.