title: Double peroral endoscopic myotomy for achalasia.
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Vivek
authors.initials: V
authors.lastname: Kumbhari
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Alan H
authors.initials: AH
authors.lastname: Tieu
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Alba
authors.initials: A
authors.lastname: Azola
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Payal
authors.initials: P
authors.lastname: Saxena
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Saowanee
authors.initials: S
authors.lastname: Ngamruengphong
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Mohamad H
authors.initials: MH
authors.lastname: El Zein
authors.affiliation: Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: Mouen A
authors.initials: MA
authors.lastname: Khashab
mesh_terms: D020776:Endoscopes, Gastrointestinal; D004867:Equipment Design; D004931:Esophageal Achalasia / Q000601:surgery*; D049630:Esophageal Sphincter, Lower / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D009055:Mouth; D009130:Muscle, Smooth / Q000601:surgery; D057605:Natural Orifice Endoscopic Surgery / Q000295:instrumentation*