@article{articleabeddbd1,
title   = {Early and late results of topical diltiazem and bethanechol for chronic anal fissure: a comparative study},
author = {Araujo, Sergio Eduardo Alonso and Sousa, Manoela Moreira and Caravatto, Pedro Paulo de Paris and Habr-Gama, Angelita and Cecconello, Ivan},
year = {2010},
journal   = {Hepato-gastroenterology}
}