Intentional selective myotomy of the lower esophageal sphincter and gastric during peroral endoscopic myotomy. PREPOEMSELECT study, preliminary results - Muñoz González, R; Rojo, E; Guarner Argente, C; Murzi Pulgar, M; De Maria Pallares, P; Miranda García, P; Parejo, S; Marín Fernández, I; Calm, A; Balboa, J C; Pèlach, A; Dall'oglio, S; Avella, A; Rodriguez de Santiago, E; Uchima, H (Endoscopy, 2025)