Ordóñez Hernández, Samantha D., Andrés Sánchez Mercader, Jesús García-Chávez, and Francisco J. Ramírez Amezcua. 2025. “Association of Achalasia and Down Syndrome in an Adult Patient: A Case Report”. International Journal of Research in Medical Sciences 13 (12):5502-5. https://doi.org/10.18203/2320-6012.ijrms20253986.