1 Division of Urology, Hospital das Clinicas da Universidade de Sao Paulo, University of São Paulo School of Medicine, Avenida Dr. Eneas de Carvalho Aguiar, 255-Sala 710F, 7° Andar, São Paulo, SP, 05403-000, Brazil. roberto.iglesias@hc.fm.usp.br.
2 Hospital Sírio Libanês, São Paulo, Brazil. roberto.iglesias@hc.fm.usp.br.
3 Department of Gastroenterology, University of São Paulo School of Medicine, São Paulo, Brazil.
4 Hospital Sírio Libanês, São Paulo, Brazil.
5 Division of Urology, Hospital das Clinicas da Universidade de Sao Paulo, University of São Paulo School of Medicine, Avenida Dr. Eneas de Carvalho Aguiar, 255-Sala 710F, 7° Andar, São Paulo, SP, 05403-000, Brazil.