Rockenbach, Marcio Aloisio Bezerra Cavalcanti, Ivan Morzoletto Pedrollo, e Antonio Carlos Maciel. “Esophageal Stricture Assessment by Esophagogram: A Pictorial Review of Differential Diagnosis”. Clinical and Biomedical Research 38, no. 4 (fevereiro 19, 2019). Acessado fevereiro 5, 2023. https://seer.ufrgs.br/index.php/hcpa/article/view/81439.