Endosonographic characteristics of the lower esophageal sphincter (LES) in achalasia patients compared to normal individuals and their associations with manometric findings and post-myotomy response - Rattanachaisit, P.; Arayakarnkul, S.; Mekaroonkamol, P.; Tiankanon, K.; Pittayanon, R.; Sirimongkolkasem, J.; Pitisuttithum, P.; Patcharatrakul, T.; Gonlachanvit, S. (Endoscopy, 2023)