1. Urology Department, Clinical Hospital University of Chile, Urology Service, National cáncer Institute and San José Hospital Center, Santiago de Chile
2. Urology Department, Clinical Hospital University of Chile, Urology Service, National cáncer Institute, Santiago de Chile
3. Urology Department, Clinical Hospital University of Chile, Urology Service, San José Hospital Center, Santiago de Chile
4. Urology Department, Clinical Hospital University of Chile Urology Service Las Condes Clinic, Santiago de Chile