Yao L, Liu Z, Chen W, Xu J, Xu X, Xu J, Ma L, Li X, Li Q, Zhou P.  Imbalance of Innate and Adaptive Immunity in Esophageal Achalasia.  J Neurogastroenterol Motil 2023;29:486-500.  https://doi.org/10.5056/jnm21246