@article {aac91, title = {Fulminant amebic colitis}, journal = {World J Surg.}, volume = {15}, number = {2}, year = {1991}, month = {Mar-Apr}, url = {http://www.springerlink.com/content/h55334242p614017/fulltext.pdf}, author = {Aristiz{\'a}bal, H. and Acevedo, J. and Botero M.} }