Hung J, Lei W, Yi C, Liu T, Wong M, Liang S, Chen C.  Influence of Menthol Infusion on Esophageal Peristalsis in Patients With Ineffective Esophageal Motility.  J Neurogastroenterol Motil 2024;30:447-452.  https://doi.org/10.5056/jnm23098