1 Faculdade de Medicina de Botucatu, Unesp, Assis, Brazil;
2 Faculdade de Medicina de Ribeirão Preto, Ribeirao Preto, Brazil;
3 University of State of Bahia, Salvador, Brazil;
4 Universid...
1 Bahia State University UNEB, Salvador, Brazil;
2 Faculdade de Medicina de Botucatu, Botucatu, Brazil;
3 Kaiser Hospital Dia, Department of Coloproctology, São José do Rio Preto, Brazil;...