@misc{miscdd61ad9f, title = {Malignant melanoma of the anorectal region: report of a case and review of the literature}, author = {Campos, F G C M and Habr Gama, Angelita and Silva, J. H. and El Ibrahim, R and Tudor, R and Pinotti, Henrique Walter}, year = {1989}, booktitle = {Congresso Brasileiro de Cirurgia Gastrointestinal} }