Prevalence of Anal Intraepithelial Lesions in Patients with Inflammatory Bowel Disease oleh Mariane Christina Savio, Rosimeri Kuhl Svoboda Baldin, Norton Luiz Nóbrega, Guilherme Mattioli Nicollelli, Antonio Sérgio Brenner, Pollyanna Borges da Rocha, Marssoni Deconto Rossoni, Maria Cristina Sartor, Antonio Baldin Junior