title: [Letter: Problem of functional analysis of the lower esophageal sphinctor].
mesh_terms: D002299:Cardia / Q000502:physiology; D002404:Catheterization; D004931:Esophageal Achalasia / Q000503:physiopathology; D004943:Esophagogastric Junction / Q000502:physiology*; D006801:Humans; D008365:Manometry / Q000379:methods*; D009362:Neoplasm Metastasis; D010477:Perfusion
vernacular_title: Zur Problematik der Funktionsanalyse des unteren Osophagussphinkters