1Department of Urology, Hospital de Clínicas de Porto Alegre, Brazil
2Department of Pediatric Urology, Hospital de Clínicas de Porto Alegre, Brazil
*Corresponding Author:
Lucas Medeiros Burttet, Department of Urology, Hospital de Clínicas de Porto Alegre, Porto Alegre/RS. CEP: 90035-003, Brazil, Tel: +55 51 33598286, Fax: +55 51 33598000 Email: