@incollection{Teixeira11, author = {Rogério Saad-Hossne and Fábio V. Teixeira}, title = {Endoscopic Approach in Ulcerative Colitis}, booktitle = {Colonoscopy}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Paul Miskovitz}, chapter = {8}, doi = {10.5772/20913}, url = {https://doi.org/10.5772/20913} }