title: Progression of Jackhammer Esophagus to Achalasia: Author's Reply.
authors.affiliation: The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, MetroHealth Medical Center, Case Western Reserve University School of Medicine Cleveland, Ohio, USA.
authors.forename: Jason
authors.initials: J
authors.lastname: Abdallah
authors.affiliation: The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, MetroHealth Medical Center, Case Western Reserve University School of Medicine Cleveland, Ohio, USA.
authors.forename: Ronnie
authors.initials: R
authors.lastname: Fass