[Lower esophageal diaphragm (Schatzki-Gary ring)].
D003680:Deglutition Disorders / Q000209:etiology*; D004940:Esophageal Stenosis / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged
Diafragma esofágico inferior (Anillo de "Schatzki y Gary".