1. Department of Urology, Hospital Israelita Albert Einstein, São Paulo, SP - 06455-010, Brazil; Faculdade de Medicina do ABC, São André, Brazil
2. Hospital Israelita Albert Einstein, São Paulo, Brazil; Faculdade de Medicina do ABC, São André, Brazil
3. Faculdade de Medicina do ABC, São André, Brazil
4. Hospital Israelita Albert Einstein, São Paulo, Brazil
5. Mauá Technology Institute, São Caetano do Sul, Brazil
6. Cleveland Clinic, Cleveland, OH, USA