A, N. S.; N, H.; ASHA, P.; PATNANA, V. A case report of achalasia. International Journal of Current Innovations in Advanced Research, [S. l.], v. 3, n. 1, p. 1–4, 2020. Disponível em: https://ijciar.com/index.php/journal/article/view/159. Acesso em: 24 sep. 2026.