RAJ, S.; RAJAN, G. V. Familial esophageal achalasia in mother and son. International Journal of Research in Medical Sciences, [S. l.], v. 1, n. 2, p. 142–144, 2017. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/2576. Acesso em: 26 may. 2026.