Contractility patterns on functional lumen imaging probe prior to peroral endoscopic myotomy predict outcomes in achalasia. - Perananthan V; Chhoda A; Ospina Velasquez LE; Myburgh SJ; Wagner A; Wong Kee Song LM; Law RJ; Codipilly DC; Snyder DL; Leggett CL; Alexander JA; Ravi K (Gastrointestinal endoscopy, 2026)