@article{article7655b36c,
title   = {Retrorectal tumors in adults: a report of five cases},
author = {Habr Gama, Angelita and Vieira, M J F and Marcham, L A and Rodriguez, J A and Sousa Júnior, A H S and Alves, Paulo Roberto Arruda and Pinotti, H W},
year = {1986},
journal   = {Abcd: Arquivos Brasileiros de Cirurgia Digestiva}
}