LOUBEJAC, Armando M. Considerations on an observation of permanent distal esophageal spasm. Cirugía del Uruguay, [S. l.], v. 13, n. 3, p. 99–104, 2020. Disponível em: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/541. Acesso em: 29 mar. 2026.