Achalasia of the Cardia in a 21 Year old Pregnant Lady: A Case Report. Tanzania Medical Journal, [S. l.], v. 23, n. 2, 2009. DOI: 10.4314/tmj.v23i2.39237. Disponível em: https://www.tmj.or.tz/index.php/tmj/article/view/56.. Acesso em: 14 may. 2025.