Kristensen, Helle Ø Peroral endoscopic myotomy (POEM) for nutcracker esophagus. Three cases with 12 months follow-up. [electronic resource] - Scandinavian journal of gastroenterology Nov 2014 - 1285-9 p. digital Publication Type: Case Reports; Journal Article ISSN: 1502-7708 Standard No.: 10.3109/00365521.2014.958096 doi Subjects--Topical Terms: AdultAgedEsophageal Motility Disorders--surgeryEsophageal Sphincter, Lower--surgeryFemaleFollow-Up StudiesHumansMaleMiddle AgedMouthNatural Orifice Endoscopic Surgery--methodsTime Factors