MAHFOUZ, M. E. M. Laparoscopic Heller myotomy after multiple endoscopic injections and dilations: a case report. International Surgery Journal, [S. l.], v. 11, n. 2, p. 270–273, 2024. DOI: 10.18203/2349-2902.isj20240182. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/10115. Acesso em: 10 nov. 2025.