@book{booke46ce2fc,
title   = {Atualizacao em cirurgia do aparelho digestivo e em coloproctologia},
author = {Habr Gama, Angelita and Gama Rodrigues, Joaquim Jose and Cecconello, Ivan and Zilberstein, Bruno and Machado, Marcel C. C. and Saad, Willian A. and Bresciani, Claudio},
year = {2002},
publisher = {Frontis}
}