title: Spiral staircase esophageal peristalsis.
authors.forename: C G
authors.initials: CG
authors.lastname: Schowengerdt
mesh_terms: D015154:Esophageal Motility Disorders / Q000175:diagnosis*; D004945:Esophagoscopy; D004947:Esophagus / Q000502:physiology*; D006801:Humans; D010528:Peristalsis